25,643,261

7 × 3663323

25,643,261 factors as 7 × 3663323. Its 4 positive divisors give a proper-divisor sum of 3,663,331, so this integer is deficient. The Collatz stopping time is 286 steps.

Prime Factor Structure

Factorization String 7 × 3663323

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 29,306,592

Proper Divisor Sum 3,663,331

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #25643251 ← → #25643263

Radix Representation

Decimal	25643261
Binary	1100001110100100011111101 (25 bits)
Octal	0o141644375
Hexadecimal	0x18748FD

Divisor Catalog (4)

1 7 3,663,323 25,643,261

Collatz Trajectory (286 steps to reach 1)

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

25,643,261 76,929,784 38,464,892 19,232,446 9,616,223 28,848,670 14,424,335 43,273,006 21,636,503 64,909,510 32,454,755 97,364,266 48,682,133 146,046,400 73,023,200 36,511,600 18,255,800 9,127,900 4,563,950 2,281,975 6,845,926 3,422,963 10,268,890 5,134,445 15,403,336 7,701,668 3,850,834 1,925,417 5,776,252 2,888,126 1,444,063 4,332,190 2,166,095 6,498,286 3,249,143 9,747,430 4,873,715 14,621,146 7,310,573 21,931,720 10,965,860 5,482,930 2,741,465 8,224,396 4,112,198 2,056,099 6,168,298 3,084,149 9,252,448 4,626,224 2,313,112 1,156,556 578,278 289,139 867,418 433,709 1,301,128 650,564 325,282 162,641

More profiles

Browse other published profiles and their separate link collections.

No other profiles in this collection.

← Previous Integer #25,643,260 Browse Full Index Next Integer #25,643,262 →