689,692

2² × 172423

689,692 factors as 2^2 × 172423. Its 6 positive divisors give a proper-divisor sum of 517,276, so this integer is deficient. The Collatz stopping time is 92 steps.

Prime Factor Structure

Factorization String 2^2 × 172423

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 1,206,968

Proper Divisor Sum 517,276

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #689641 ← → #689693

Radix Representation

Decimal	689692
Binary	10101000011000011100 (20 bits)
Octal	0o2503034
Hexadecimal	0xA861C

Divisor Catalog (6)

1 2 4 172,423 344,846 689,692

Collatz Trajectory (92 steps to reach 1)

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

689,692 344,846 172,423 517,270 258,635 775,906 387,953 1,163,860 581,930 290,965 872,896 436,448 218,224 109,112 54,556 27,278 13,639 40,918 20,459 61,378 30,689 92,068 46,034 23,017 69,052 34,526 17,263 51,790 25,895 77,686 38,843 116,530 58,265 174,796 87,398 43,699 131,098 65,549 196,648 98,324 49,162 24,581 73,744 36,872 18,436 9,218 4,609 13,828 6,914 3,457 10,372 5,186 2,593 7,780 3,890 1,945 5,836 2,918 1,459 4,378

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