13,221,355

5 × 7 × 503 × 751

13,221,355 factors as 5 × 7 × 503 × 751. Its 16 positive divisors give a proper-divisor sum of 4,971,029, so this integer is deficient. The Collatz stopping time is 210 steps.

Prime Factor Structure

Factorization String 5 × 7 × 503 × 751

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 18,192,384

Proper Divisor Sum 4,971,029

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #13221353 ← → #13221379

Radix Representation

Decimal	13221355
Binary	110010011011110111101011 (24 bits)
Octal	0o62336753
Hexadecimal	0xC9BDEB

Divisor Catalog (16)

1 5 7 35 503 751 2,515 3,521 3,755 5,257 17,605 26,285 377,753 1,888,765 2,644,271 13,221,355

Collatz Trajectory (210 steps to reach 1)

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

13,221,355 39,664,066 19,832,033 59,496,100 29,748,050 14,874,025 44,622,076 22,311,038 11,155,519 33,466,558 16,733,279 50,199,838 25,099,919 75,299,758 37,649,879 112,949,638 56,474,819 169,424,458 84,712,229 254,136,688 127,068,344 63,534,172 31,767,086 15,883,543 47,650,630 23,825,315 71,475,946 35,737,973 107,213,920 53,606,960 26,803,480 13,401,740 6,700,870 3,350,435 10,051,306 5,025,653 15,076,960 7,538,480 3,769,240 1,884,620 942,310 471,155 1,413,466 706,733 2,120,200 1,060,100 530,050 265,025 795,076 397,538 198,769 596,308 298,154 149,077 447,232 223,616 111,808 55,904 27,952 13,976

More profiles

Browse other published profiles and their separate link collections.

Profile #8,342,168 Profile #1,146,956 Profile #9,712,347 Profile #6,573,969 Profile #965,653 Profile #4,620,983 Profile #853,259 Profile #1,288,150

← Previous Integer #13,221,354 Browse Full Index Next Integer #13,221,356 →