1,078,630

2 × 5 × 7 × 19 × 811

Starting at 1,078,630, the Collatz iteration reaches 1 after 209 steps. The first transition is 539315; the starting value is even with 32 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 7 × 19 × 811

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 2,338,560

Proper Divisor Sum 1,259,930

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #1078589 ← → #1078643

Radix Representation

Decimal	1078630
Binary	100000111010101100110 (21 bits)
Octal	0o4072546
Hexadecimal	0x107566

Divisor Catalog (32)

1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 811 1,330 1,622 4,055 5,677 8,110 11,354 15,409 28,385 30,818 56,770 77,045 107,863 154,090 215,726 539,315 1,078,630

Collatz Trajectory (209 steps to reach 1)

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

1,078,630 539,315 1,617,946 808,973 2,426,920 1,213,460 606,730 303,365 910,096 455,048 227,524 113,762 56,881 170,644 85,322 42,661 127,984 63,992 31,996 15,998 7,999 23,998 11,999 35,998 17,999 53,998 26,999 80,998 40,499 121,498 60,749 182,248 91,124 45,562 22,781 68,344 34,172 17,086 8,543 25,630 12,815 38,446 19,223 57,670 28,835 86,506 43,253 129,760 64,880 32,440 16,220 8,110 4,055 12,166 6,083 18,250 9,125 27,376 13,688 6,844

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