25,990,780

2² × 5 × 269 × 4831

25,990,780 factors as 2^2 × 5 × 269 × 4831. Its 24 positive divisors give a proper-divisor sum of 28,804,100, so this integer is abundant. The Collatz stopping time is 154 steps.

Prime Factor Structure

Factorization String 2^2 × 5 × 269 × 4831

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 54,794,880

Proper Divisor Sum 28,804,100

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #25990777 ← → #25990787

Radix Representation

Decimal	25990780
Binary	1100011001001011001111100 (25 bits)
Octal	0o143113174
Hexadecimal	0x18C967C

Divisor Catalog (24)

Collatz Trajectory (154 steps to reach 1)

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

25,990,780 12,995,390 6,497,695 19,493,086 9,746,543 29,239,630 14,619,815 43,859,446 21,929,723 65,789,170 32,894,585 98,683,756 49,341,878 24,670,939 74,012,818 37,006,409 111,019,228 55,509,614 27,754,807 83,264,422 41,632,211 124,896,634 62,448,317 187,344,952 93,672,476 46,836,238 23,418,119 70,254,358 35,127,179 105,381,538 52,690,769 158,072,308 79,036,154 39,518,077 118,554,232 59,277,116 29,638,558 14,819,279 44,457,838 22,228,919 66,686,758 33,343,379 100,030,138 50,015,069 150,045,208 75,022,604 37,511,302 18,755,651 56,266,954 28,133,477 84,400,432 42,200,216 21,100,108 10,550,054 5,275,027 15,825,082 7,912,541 23,737,624 11,868,812 5,934,406

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