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1,311,650

2 × 52 × 37 × 709
Deficient Even Composite

1,311,650 factors as 2 × 5^2 × 37 × 709. Its 24 positive divisors give a proper-divisor sum of 1,197,490, so this integer is deficient. The Collatz stopping time is 111 steps.

Prime Factor Structure

Factorization String 2 × 5^2 × 37 × 709
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 2,509,140
Proper Divisor Sum 1,197,490
Digit Sum / Digital Root 17 (Root: 8)
Adjacent Primes #1311643 ← → #1311689

Radix Representation

Decimal 1311650
Binary 101000000001110100010 (21 bits)
Octal 0o5001642
Hexadecimal 0x1403A2

Divisor Catalog (24)

1 2 5 10 25 37 50 74 185 370 709 925 1,418 1,850 3,545 7,090 17,725 26,233 35,450 52,466 131,165 262,330 655,825 1,311,650

Collatz Trajectory (111 steps to reach 1)

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

1,311,650 655,825 1,967,476 983,738 491,869 1,475,608 737,804 368,902 184,451 553,354 276,677 830,032 415,016 207,508 103,754 51,877 155,632 77,816 38,908 19,454 9,727 29,182 14,591 43,774 21,887 65,662 32,831 98,494 49,247 147,742 73,871 221,614 110,807 332,422 166,211 498,634 249,317 747,952 373,976 186,988 93,494 46,747 140,242 70,121 210,364 105,182 52,591 157,774 78,887 236,662 118,331 354,994 177,497 532,492 266,246 133,123 399,370 199,685 599,056 299,528

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