31,379,686

2 × 13 × 643 × 1877

31,379,686 factors as 2 × 13 × 643 × 1877. Its 16 positive divisors give a proper-divisor sum of 19,416,458, so this integer is deficient. The Collatz stopping time is 188 steps.

Prime Factor Structure

Factorization String 2 × 13 × 643 × 1877

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 50,796,144

Proper Divisor Sum 19,416,458

Digit Sum / Digital Root 43 (Root: 7)

Adjacent Primes #31379639 ← → #31379687

Radix Representation

Decimal	31379686
Binary	1110111101101000011100110 (25 bits)
Octal	0o167550346
Hexadecimal	0x1DED0E6

Divisor Catalog (16)

1 2 13 26 643 1,286 1,877 3,754 8,359 16,718 24,401 48,802 1,206,911 2,413,822 15,689,843 31,379,686

Collatz Trajectory (188 steps to reach 1)

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

31,379,686 15,689,843 47,069,530 23,534,765 70,604,296 35,302,148 17,651,074 8,825,537 26,476,612 13,238,306 6,619,153 19,857,460 9,928,730 4,964,365 14,893,096 7,446,548 3,723,274 1,861,637 5,584,912 2,792,456 1,396,228 698,114 349,057 1,047,172 523,586 261,793 785,380 392,690 196,345 589,036 294,518 147,259 441,778 220,889 662,668 331,334 165,667 497,002 248,501 745,504 372,752 186,376 93,188 46,594 23,297 69,892 34,946 17,473 52,420 26,210 13,105 39,316 19,658 9,829 29,488 14,744 7,372 3,686 1,843 5,530

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