9,163,921

13 × 79 × 8923

Starting at 9,163,921, the Collatz iteration reaches 1 after 225 steps. The first transition is 27491764; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 13 × 79 × 8923

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 9,994,880

Proper Divisor Sum 830,959

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #9163897 ← → #9163927

Radix Representation

Decimal	9163921
Binary	100010111101010010010001 (24 bits)
Octal	0o42752221
Hexadecimal	0x8BD491

Divisor Catalog (8)

1 13 79 1,027 8,923 115,999 704,917 9,163,921

Collatz Trajectory (225 steps to reach 1)

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

9,163,921 27,491,764 13,745,882 6,872,941 20,618,824 10,309,412 5,154,706 2,577,353 7,732,060 3,866,030 1,933,015 5,799,046 2,899,523 8,698,570 4,349,285 13,047,856 6,523,928 3,261,964 1,630,982 815,491 2,446,474 1,223,237 3,669,712 1,834,856 917,428 458,714 229,357 688,072 344,036 172,018 86,009 258,028 129,014 64,507 193,522 96,761 290,284 145,142 72,571 217,714 108,857 326,572 163,286 81,643 244,930 122,465 367,396 183,698 91,849 275,548 137,774 68,887 206,662 103,331 309,994 154,997 464,992 232,496 116,248 58,124

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