745,285

5 × 149057

Starting at 745,285, the Collatz iteration reaches 1 after 61 steps. The first transition is 2235856; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 149057

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 894,348

Proper Divisor Sum 149,063

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #745273 ← → #745301

Radix Representation

Decimal	745285
Binary	10110101111101000101 (20 bits)
Octal	0o2657505
Hexadecimal	0xB5F45

Divisor Catalog (4)

1 5 149,057 745,285

Collatz Trajectory (61 steps to reach 1)

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

745,285 2,235,856 1,117,928 558,964 279,482 139,741 419,224 209,612 104,806 52,403 157,210 78,605 235,816 117,908 58,954 29,477 88,432 44,216 22,108 11,054 5,527 16,582 8,291 24,874 12,437 37,312 18,656 9,328 4,664 2,332 1,166 583 1,750 875 2,626 1,313 3,940 1,970 985 2,956 1,478 739 2,218 1,109 3,328 1,664 832 416 208 104 52 26 13 40 20 10 5 16 8 4

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