28,291,688

2³ × 67 × 52783

28,291,688 factors as 2^3 × 67 × 52783. Its 16 positive divisors give a proper-divisor sum of 25,547,992, so this integer is deficient. The Collatz stopping time is 149 steps.

Prime Factor Structure

Factorization String 2^3 × 67 × 52783

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 53,839,680

Proper Divisor Sum 25,547,992

Digit Sum / Digital Root 44 (Root: 8)

Adjacent Primes #28291687 ← → #28291693

Radix Representation

Decimal	28291688
Binary	1101011111011001001101000 (25 bits)
Octal	0o153731150
Hexadecimal	0x1AFB268

Divisor Catalog (16)

1 2 4 8 67 134 268 536 52,783 105,566 211,132 422,264 3,536,461 7,072,922 14,145,844 28,291,688

Collatz Trajectory (149 steps to reach 1)

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

28,291,688 14,145,844 7,072,922 3,536,461 10,609,384 5,304,692 2,652,346 1,326,173 3,978,520 1,989,260 994,630 497,315 1,491,946 745,973 2,237,920 1,118,960 559,480 279,740 139,870 69,935 209,806 104,903 314,710 157,355 472,066 236,033 708,100 354,050 177,025 531,076 265,538 132,769 398,308 199,154 99,577 298,732 149,366 74,683 224,050 112,025 336,076 168,038 84,019 252,058 126,029 378,088 189,044 94,522 47,261 141,784 70,892 35,446 17,723 53,170 26,585 79,756 39,878 19,939 59,818 29,909

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