1,257,646

2 × 13 × 48371

1,257,646 factors as 2 × 13 × 48371. Its 8 positive divisors give a proper-divisor sum of 773,978, so this integer is deficient. The Collatz stopping time is 129 steps.

Prime Factor Structure

Factorization String 2 × 13 × 48371

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 2,031,624

Proper Divisor Sum 773,978

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #1257611 ← → #1257647

Radix Representation

Decimal	1257646
Binary	100110011000010101110 (21 bits)
Octal	0o4630256
Hexadecimal	0x1330AE

Divisor Catalog (8)

1 2 13 26 48,371 96,742 628,823 1,257,646

Collatz Trajectory (129 steps to reach 1)

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

1,257,646 628,823 1,886,470 943,235 2,829,706 1,414,853 4,244,560 2,122,280 1,061,140 530,570 265,285 795,856 397,928 198,964 99,482 49,741 149,224 74,612 37,306 18,653 55,960 27,980 13,990 6,995 20,986 10,493 31,480 15,740 7,870 3,935 11,806 5,903 17,710 8,855 26,566 13,283 39,850 19,925 59,776 29,888 14,944 7,472 3,736 1,868 934 467 1,402 701 2,104 1,052 526 263 790 395 1,186 593 1,780 890 445 1,336

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