λ
Ratio Atlas
Atlas › Integer Profiles › Node 28,239,015

28,239,015

3 × 5 × 7 × 131 × 2053
Deficient Odd Composite

28,239,015 factors as 3 × 5 × 7 × 131 × 2053. Its 32 positive divisors give a proper-divisor sum of 23,817,561, so this integer is deficient. The Collatz stopping time is 211 steps.

Prime Factor Structure

Factorization String 3 × 5 × 7 × 131 × 2053
Distinct Prime Factors 5
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 32
Divisor Sum (σ) 52,056,576
Proper Divisor Sum 23,817,561
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #28238999 ← → #28239019

Radix Representation

Decimal 28239015
Binary 1101011101110010010100111 (25 bits)
Octal 0o153562247
Hexadecimal 0x1AEE4A7

Divisor Catalog (32)

1 3 5 7 15 21 35 105 131 393 655 917 1,965 2,053 2,751 4,585 6,159 10,265 13,755 14,371 30,795 43,113 71,855 215,565 268,943 806,829 1,344,715 1,882,601 4,034,145 5,647,803 9,413,005 28,239,015

Collatz Trajectory (211 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

28,239,015 84,717,046 42,358,523 127,075,570 63,537,785 190,613,356 95,306,678 47,653,339 142,960,018 71,480,009 214,440,028 107,220,014 53,610,007 160,830,022 80,415,011 241,245,034 120,622,517 361,867,552 180,933,776 90,466,888 45,233,444 22,616,722 11,308,361 33,925,084 16,962,542 8,481,271 25,443,814 12,721,907 38,165,722 19,082,861 57,248,584 28,624,292 14,312,146 7,156,073 21,468,220 10,734,110 5,367,055 16,101,166 8,050,583 24,151,750 12,075,875 36,227,626 18,113,813 54,341,440 27,170,720 13,585,360 6,792,680 3,396,340 1,698,170 849,085 2,547,256 1,273,628 636,814 318,407 955,222 477,611 1,432,834 716,417 2,149,252 1,074,626

More profiles

Browse other published profiles and their separate link collections.

No other profiles in this collection.

← Previous Integer #28,239,014 Browse Full Index Next Integer #28,239,016 →