1,371,959

67 × 20477

Starting at 1,371,959, the Collatz iteration reaches 1 after 261 steps. The first transition is 4115878; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 67 × 20477

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,392,504

Proper Divisor Sum 20,545

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #1371949 ← → #1371989

Radix Representation

Decimal	1371959
Binary	101001110111100110111 (21 bits)
Octal	0o5167467
Hexadecimal	0x14EF37

Divisor Catalog (4)

1 67 20,477 1,371,959

Collatz Trajectory (261 steps to reach 1)

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

1,371,959 4,115,878 2,057,939 6,173,818 3,086,909 9,260,728 4,630,364 2,315,182 1,157,591 3,472,774 1,736,387 5,209,162 2,604,581 7,813,744 3,906,872 1,953,436 976,718 488,359 1,465,078 732,539 2,197,618 1,098,809 3,296,428 1,648,214 824,107 2,472,322 1,236,161 3,708,484 1,854,242 927,121 2,781,364 1,390,682 695,341 2,086,024 1,043,012 521,506 260,753 782,260 391,130 195,565 586,696 293,348 146,674 73,337 220,012 110,006 55,003 165,010 82,505 247,516 123,758 61,879 185,638 92,819 278,458 139,229 417,688 208,844 104,422 52,211

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