1,568,515

5 × 13 × 59 × 409

1,568,515 factors as 5 × 13 × 59 × 409. Its 16 positive divisors give a proper-divisor sum of 497,885, so this integer is deficient. The Collatz stopping time is 132 steps.

Prime Factor Structure

Factorization String 5 × 13 × 59 × 409

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,066,400

Proper Divisor Sum 497,885

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #1568509 ← → #1568519

Radix Representation

Decimal	1568515
Binary	101111110111100000011 (21 bits)
Octal	0o5767403
Hexadecimal	0x17EF03

Divisor Catalog (16)

1 5 13 59 65 295 409 767 2,045 3,835 5,317 24,131 26,585 120,655 313,703 1,568,515

Collatz Trajectory (132 steps to reach 1)

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

1,568,515 4,705,546 2,352,773 7,058,320 3,529,160 1,764,580 882,290 441,145 1,323,436 661,718 330,859 992,578 496,289 1,488,868 744,434 372,217 1,116,652 558,326 279,163 837,490 418,745 1,256,236 628,118 314,059 942,178 471,089 1,413,268 706,634 353,317 1,059,952 529,976 264,988 132,494 66,247 198,742 99,371 298,114 149,057 447,172 223,586 111,793 335,380 167,690 83,845 251,536 125,768 62,884 31,442 15,721 47,164 23,582 11,791 35,374 17,687 53,062 26,531 79,594 39,797 119,392 59,696

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