1,591,746

2 × 3 × 13 × 20407

1,591,746 factors as 2 × 3 × 13 × 20407. Its 16 positive divisors give a proper-divisor sum of 1,836,798, so this integer is abundant. The Collatz stopping time is 207 steps.

Prime Factor Structure

Factorization String 2 × 3 × 13 × 20407

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,428,544

Proper Divisor Sum 1,836,798

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #1591729 ← → #1591753

Radix Representation

Decimal	1591746
Binary	110000100100111000010 (21 bits)
Octal	0o6044702
Hexadecimal	0x1849C2

Divisor Catalog (16)

1 2 3 6 13 26 39 78 20,407 40,814 61,221 122,442 265,291 530,582 795,873 1,591,746

Collatz Trajectory (207 steps to reach 1)

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

1,591,746 795,873 2,387,620 1,193,810 596,905 1,790,716 895,358 447,679 1,343,038 671,519 2,014,558 1,007,279 3,021,838 1,510,919 4,532,758 2,266,379 6,799,138 3,399,569 10,198,708 5,099,354 2,549,677 7,649,032 3,824,516 1,912,258 956,129 2,868,388 1,434,194 717,097 2,151,292 1,075,646 537,823 1,613,470 806,735 2,420,206 1,210,103 3,630,310 1,815,155 5,445,466 2,722,733 8,168,200 4,084,100 2,042,050 1,021,025 3,063,076 1,531,538 765,769 2,297,308 1,148,654 574,327 1,722,982 861,491 2,584,474 1,292,237 3,876,712 1,938,356 969,178 484,589 1,453,768 726,884 363,442

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