3,981,515

5 × 796303

Starting at 3,981,515, the Collatz iteration reaches 1 after 92 steps. The first transition is 11944546; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 796303

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,777,824

Proper Divisor Sum 796,309

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #3981503 ← → #3981517

Radix Representation

Decimal	3981515
Binary	1111001100000011001011 (22 bits)
Octal	0o17140313
Hexadecimal	0x3CC0CB

Divisor Catalog (4)

1 5 796,303 3,981,515

Collatz Trajectory (92 steps to reach 1)

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

3,981,515 11,944,546 5,972,273 17,916,820 8,958,410 4,479,205 13,437,616 6,718,808 3,359,404 1,679,702 839,851 2,519,554 1,259,777 3,779,332 1,889,666 944,833 2,834,500 1,417,250 708,625 2,125,876 1,062,938 531,469 1,594,408 797,204 398,602 199,301 597,904 298,952 149,476 74,738 37,369 112,108 56,054 28,027 84,082 42,041 126,124 63,062 31,531 94,594 47,297 141,892 70,946 35,473 106,420 53,210 26,605 79,816 39,908 19,954 9,977 29,932 14,966 7,483 22,450 11,225 33,676 16,838 8,419 25,258

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