21,042,003

3 × 89 × 78809

21,042,003 factors as 3 × 89 × 78809. Its 8 positive divisors give a proper-divisor sum of 7,329,597, so this integer is deficient. The Collatz stopping time is 208 steps.

Prime Factor Structure

Factorization String 3 × 89 × 78809

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 28,371,600

Proper Divisor Sum 7,329,597

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #21041989 ← → #21042013

Radix Representation

Decimal	21042003
Binary	1010000010001001101010011 (25 bits)
Octal	0o120211523
Hexadecimal	0x1411353

Divisor Catalog (8)

1 3 89 267 78,809 236,427 7,014,001 21,042,003

Collatz Trajectory (208 steps to reach 1)

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

21,042,003 63,126,010 31,563,005 94,689,016 47,344,508 23,672,254 11,836,127 35,508,382 17,754,191 53,262,574 26,631,287 79,893,862 39,946,931 119,840,794 59,920,397 179,761,192 89,880,596 44,940,298 22,470,149 67,410,448 33,705,224 16,852,612 8,426,306 4,213,153 12,639,460 6,319,730 3,159,865 9,479,596 4,739,798 2,369,899 7,109,698 3,554,849 10,664,548 5,332,274 2,666,137 7,998,412 3,999,206 1,999,603 5,998,810 2,999,405 8,998,216 4,499,108 2,249,554 1,124,777 3,374,332 1,687,166 843,583 2,530,750 1,265,375 3,796,126 1,898,063 5,694,190 2,847,095 8,541,286 4,270,643 12,811,930 6,405,965 19,217,896 9,608,948 4,804,474

More profiles

Browse other published profiles and their separate link collections.

No other profiles in this collection.

← Previous Integer #21,042,002 Browse Full Index Next Integer #21,042,004 →