1,212,849

3² × 11 × 12251

Starting at 1,212,849, the Collatz iteration reaches 1 after 111 steps. The first transition is 3638548; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 3^2 × 11 × 12251

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,911,312

Proper Divisor Sum 698,463

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #1212847 ← → #1212851

Radix Representation

Decimal	1212849
Binary	100101000000110110001 (21 bits)
Octal	0o4500661
Hexadecimal	0x1281B1

Divisor Catalog (12)

1 3 9 11 33 99 12,251 36,753 110,259 134,761 404,283 1,212,849

Collatz Trajectory (111 steps to reach 1)

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

1,212,849 3,638,548 1,819,274 909,637 2,728,912 1,364,456 682,228 341,114 170,557 511,672 255,836 127,918 63,959 191,878 95,939 287,818 143,909 431,728 215,864 107,932 53,966 26,983 80,950 40,475 121,426 60,713 182,140 91,070 45,535 136,606 68,303 204,910 102,455 307,366 153,683 461,050 230,525 691,576 345,788 172,894 86,447 259,342 129,671 389,014 194,507 583,522 291,761 875,284 437,642 218,821 656,464 328,232 164,116 82,058 41,029 123,088 61,544 30,772 15,386 7,693

← Previous Integer #1,212,848 Browse Full Index Next Integer #1,212,850 →