1,408,988

2² × 7 × 50321

1,408,988 has digital root 2. The neighboring primes are 1408987 and 1408991; its proper-divisor sum differs from the starting integer by 56.

Prime Factor Structure

Factorization String 2^2 × 7 × 50321

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 12

Divisor Sum (σ) 2,818,032

Proper Divisor Sum 1,409,044

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #1408987 ← → #1408991

1 2 4 7 14 28 50,321 100,642 201,284 352,247 704,494 1,408,988

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

1,408,988 704,494 352,247 1,056,742 528,371 1,585,114 792,557 2,377,672 1,188,836 594,418 297,209 891,628 445,814 222,907 668,722 334,361 1,003,084 501,542 250,771 752,314 376,157 1,128,472 564,236 282,118 141,059 423,178 211,589 634,768 317,384 158,692 79,346 39,673 119,020 59,510 29,755 89,266 44,633 133,900 66,950 33,475 100,426 50,213 150,640 75,320 37,660 18,830 9,415 28,246 14,123 42,370 21,185 63,556 31,778 15,889 47,668 23,834 11,917 35,752 17,876 8,938

Browse other published profiles and their separate link collections.