1,281,425

5² × 51257

1,281,425 factors as 5^2 × 51257. Its 6 positive divisors give a proper-divisor sum of 307,573, so this integer is deficient. The Collatz stopping time is 173 steps.

Prime Factor Structure

Factorization String 5^2 × 51257

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 1,588,998

Proper Divisor Sum 307,573

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #1281407 ← → #1281431

Radix Representation

Decimal	1281425
Binary	100111000110110010001 (21 bits)
Octal	0o4706621
Hexadecimal	0x138D91

Divisor Catalog (6)

1 5 25 51,257 256,285 1,281,425

Collatz Trajectory (173 steps to reach 1)

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

1,281,425 3,844,276 1,922,138 961,069 2,883,208 1,441,604 720,802 360,401 1,081,204 540,602 270,301 810,904 405,452 202,726 101,363 304,090 152,045 456,136 228,068 114,034 57,017 171,052 85,526 42,763 128,290 64,145 192,436 96,218 48,109 144,328 72,164 36,082 18,041 54,124 27,062 13,531 40,594 20,297 60,892 30,446 15,223 45,670 22,835 68,506 34,253 102,760 51,380 25,690 12,845 38,536 19,268 9,634 4,817 14,452 7,226 3,613 10,840 5,420 2,710 1,355

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