2,620,013

11² × 59 × 367

2,620,013 has digital root 5. The neighboring primes are 2620003 and 2620019; its proper-divisor sum differs from the starting integer by -2,303,386.

Prime Factor Structure

Factorization String 11^2 × 59 × 367

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 2,936,640

Proper Divisor Sum 316,627

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #2620003 ← → #2620019

1 11 59 121 367 649 4,037 7,139 21,653 44,407 238,183 2,620,013

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

2,620,013 7,860,040 3,930,020 1,965,010 982,505 2,947,516 1,473,758 736,879 2,210,638 1,105,319 3,315,958 1,657,979 4,973,938 2,486,969 7,460,908 3,730,454 1,865,227 5,595,682 2,797,841 8,393,524 4,196,762 2,098,381 6,295,144 3,147,572 1,573,786 786,893 2,360,680 1,180,340 590,170 295,085 885,256 442,628 221,314 110,657 331,972 165,986 82,993 248,980 124,490 62,245 186,736 93,368 46,684 23,342 11,671 35,014 17,507 52,522 26,261 78,784 39,392 19,696 9,848 4,924 2,462 1,231 3,694 1,847 5,542 2,771