7,145,575

5² × 285823

Starting at 7,145,575, the Collatz iteration reaches 1 after 173 steps. The first transition is 21436726; the starting value is odd with 6 positive divisors.

Prime Factor Structure

Factorization String 5^2 × 285823

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 8,860,544

Proper Divisor Sum 1,714,969

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #7145563 ← → #7145587

Radix Representation

Decimal	7145575
Binary	11011010000100001100111 (23 bits)
Octal	0o33204147
Hexadecimal	0x6D0867

Divisor Catalog (6)

1 5 25 285,823 1,429,115 7,145,575

Collatz Trajectory (173 steps to reach 1)

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

7,145,575 21,436,726 10,718,363 32,155,090 16,077,545 48,232,636 24,116,318 12,058,159 36,174,478 18,087,239 54,261,718 27,130,859 81,392,578 40,696,289 122,088,868 61,044,434 30,522,217 91,566,652 45,783,326 22,891,663 68,674,990 34,337,495 103,012,486 51,506,243 154,518,730 77,259,365 231,778,096 115,889,048 57,944,524 28,972,262 14,486,131 43,458,394 21,729,197 65,187,592 32,593,796 16,296,898 8,148,449 24,445,348 12,222,674 6,111,337 18,334,012 9,167,006 4,583,503 13,750,510 6,875,255 20,625,766 10,312,883 30,938,650 15,469,325 46,407,976 23,203,988 11,601,994 5,800,997 17,402,992 8,701,496 4,350,748 2,175,374 1,087,687 3,263,062 1,631,531

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