21,391,137

3² × 2376793

Prime Factor Structure

Factorization String 3^2 × 2376793

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Total Divisors 6

Divisor Sum (σ) 30,898,322

Proper Divisor Sum 9,507,185

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #21391133 ← → #21391187

1 3 9 2,376,793 7,130,379 21,391,137

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

21,391,137 64,173,412 32,086,706 16,043,353 48,130,060 24,065,030 12,032,515 36,097,546 18,048,773 54,146,320 27,073,160 13,536,580 6,768,290 3,384,145 10,152,436 5,076,218 2,538,109 7,614,328 3,807,164 1,903,582 951,791 2,855,374 1,427,687 4,283,062 2,141,531 6,424,594 3,212,297 9,636,892 4,818,446 2,409,223 7,227,670 3,613,835 10,841,506 5,420,753 16,262,260 8,131,130 4,065,565 12,196,696 6,098,348 3,049,174 1,524,587 4,573,762 2,286,881 6,860,644 3,430,322 1,715,161 5,145,484 2,572,742 1,286,371 3,859,114 1,929,557 5,788,672 2,894,336 1,447,168 723,584 361,792 180,896 90,448 45,224 22,612

Browse other published profiles and their separate link collections.

No other profiles in this collection.