1,946,860

2² × 5 × 311 × 313

Starting at 1,946,860, the Collatz iteration reaches 1 after 65 steps. The first transition is 973430; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 5 × 311 × 313

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 4,114,656

Proper Divisor Sum 2,167,796

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #1946851 ← → #1946869

Radix Representation

Decimal	1946860
Binary	111011011010011101100 (21 bits)
Octal	0o7332354
Hexadecimal	0x1DB4EC

Divisor Catalog (24)

1 2 4 5 10 20 311 313 622 626 1,244 1,252 1,555 1,565 3,110 3,130 6,220 6,260 97,343 194,686 389,372 486,715 973,430 1,946,860

Collatz Trajectory (65 steps to reach 1)

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

1,946,860 973,430 486,715 1,460,146 730,073 2,190,220 1,095,110 547,555 1,642,666 821,333 2,464,000 1,232,000 616,000 308,000 154,000 77,000 38,500 19,250 9,625 28,876 14,438 7,219 21,658 10,829 32,488 16,244 8,122 4,061 12,184 6,092 3,046 1,523 4,570 2,285 6,856 3,428 1,714 857 2,572 1,286 643 1,930 965 2,896 1,448 724 362 181 544 272 136 68 34 17 52 26 13 40 20 10

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