641,502

2 × 3² × 157 × 227

641,502 factors as 2 × 3^2 × 157 × 227. Its 24 positive divisors give a proper-divisor sum of 763,434, so this integer is abundant. The Collatz stopping time is 216 steps.

Prime Factor Structure

Factorization String 2 × 3^2 × 157 × 227

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,404,936

Proper Divisor Sum 763,434

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #641491 ← → #641513

Radix Representation

Decimal	641502
Binary	10011100100111011110 (20 bits)
Octal	0o2344736
Hexadecimal	0x9C9DE

Divisor Catalog (24)

Collatz Trajectory (216 steps to reach 1)

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

641,502 320,751 962,254 481,127 1,443,382 721,691 2,165,074 1,082,537 3,247,612 1,623,806 811,903 2,435,710 1,217,855 3,653,566 1,826,783 5,480,350 2,740,175 8,220,526 4,110,263 12,330,790 6,165,395 18,496,186 9,248,093 27,744,280 13,872,140 6,936,070 3,468,035 10,404,106 5,202,053 15,606,160 7,803,080 3,901,540 1,950,770 975,385 2,926,156 1,463,078 731,539 2,194,618 1,097,309 3,291,928 1,645,964 822,982 411,491 1,234,474 617,237 1,851,712 925,856 462,928 231,464 115,732 57,866 28,933 86,800 43,400 21,700 10,850 5,425 16,276 8,138 4,069

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