1,918,267

13 × 41 × 59 × 61

Starting at 1,918,267, the Collatz iteration reaches 1 after 70 steps. The first transition is 5754802; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 13 × 41 × 59 × 61

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,187,360

Proper Divisor Sum 269,093

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #1918247 ← → #1918283

Radix Representation

Decimal	1918267
Binary	111010100010100111011 (21 bits)
Octal	0o7242473
Hexadecimal	0x1D453B

Divisor Catalog (16)

1 13 41 59 61 533 767 793 2,419 2,501 3,599 31,447 32,513 46,787 147,559 1,918,267

Collatz Trajectory (70 steps to reach 1)

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

1,918,267 5,754,802 2,877,401 8,632,204 4,316,102 2,158,051 6,474,154 3,237,077 9,711,232 4,855,616 2,427,808 1,213,904 606,952 303,476 151,738 75,869 227,608 113,804 56,902 28,451 85,354 42,677 128,032 64,016 32,008 16,004 8,002 4,001 12,004 6,002 3,001 9,004 4,502 2,251 6,754 3,377 10,132 5,066 2,533 7,600 3,800 1,900 950 475 1,426 713 2,140 1,070 535 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113 340

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