9,661,225

5² × 7 × 55207

Starting at 9,661,225, the Collatz iteration reaches 1 after 207 steps. The first transition is 28983676; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 5^2 × 7 × 55207

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 13,691,584

Proper Divisor Sum 4,030,359

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #9661207 ← → #9661231

Radix Representation

Decimal	9661225
Binary	100100110110101100101001 (24 bits)
Octal	0o44665451
Hexadecimal	0x936B29

Divisor Catalog (12)

1 5 7 25 35 175 55,207 276,035 386,449 1,380,175 1,932,245 9,661,225

Collatz Trajectory (207 steps to reach 1)

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

9,661,225 28,983,676 14,491,838 7,245,919 21,737,758 10,868,879 32,606,638 16,303,319 48,909,958 24,454,979 73,364,938 36,682,469 110,047,408 55,023,704 27,511,852 13,755,926 6,877,963 20,633,890 10,316,945 30,950,836 15,475,418 7,737,709 23,213,128 11,606,564 5,803,282 2,901,641 8,704,924 4,352,462 2,176,231 6,528,694 3,264,347 9,793,042 4,896,521 14,689,564 7,344,782 3,672,391 11,017,174 5,508,587 16,525,762 8,262,881 24,788,644 12,394,322 6,197,161 18,591,484 9,295,742 4,647,871 13,943,614 6,971,807 20,915,422 10,457,711 31,373,134 15,686,567 47,059,702 23,529,851 70,589,554 35,294,777 105,884,332 52,942,166 26,471,083 79,413,250

← Previous Integer #9,661,224 Browse Full Index Next Integer #9,661,226 →