1,618,878

2 × 3 × 23 × 11731

1,618,878 factors as 2 × 3 × 23 × 11731. Its 16 positive divisors give a proper-divisor sum of 1,759,938, so this integer is abundant. The Collatz stopping time is 207 steps.

Prime Factor Structure

Factorization String 2 × 3 × 23 × 11731

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,378,816

Proper Divisor Sum 1,759,938

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #1618853 ← → #1618891

Radix Representation

Decimal	1618878
Binary	110001011001110111110 (21 bits)
Octal	0o6131676
Hexadecimal	0x18B3BE

Divisor Catalog (16)

1 2 3 6 23 46 69 138 11,731 23,462 35,193 70,386 269,813 539,626 809,439 1,618,878

Collatz Trajectory (207 steps to reach 1)

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

1,618,878 809,439 2,428,318 1,214,159 3,642,478 1,821,239 5,463,718 2,731,859 8,195,578 4,097,789 12,293,368 6,146,684 3,073,342 1,536,671 4,610,014 2,305,007 6,915,022 3,457,511 10,372,534 5,186,267 15,558,802 7,779,401 23,338,204 11,669,102 5,834,551 17,503,654 8,751,827 26,255,482 13,127,741 39,383,224 19,691,612 9,845,806 4,922,903 14,768,710 7,384,355 22,153,066 11,076,533 33,229,600 16,614,800 8,307,400 4,153,700 2,076,850 1,038,425 3,115,276 1,557,638 778,819 2,336,458 1,168,229 3,504,688 1,752,344 876,172 438,086 219,043 657,130 328,565 985,696 492,848 246,424 123,212 61,606

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