3,778,948

2² × 19² × 2617

3,778,948 has digital root 1. The neighboring primes are 3778939 and 3778949; its proper-divisor sum differs from the starting integer by -575,690.

Prime Factor Structure

Factorization String 2^2 × 19^2 × 2617

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 18

Divisor Sum (σ) 6,982,206

Proper Divisor Sum 3,203,258

Digit Sum / Digital Root 46 (Root: 1)

Adjacent Primes #3778939 ← → #3778949

1 2 4 19 38 76 361 722 1,444 2,617 5,234 10,468 49,723 99,446 198,892 944,737 1,889,474 3,778,948

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

3,778,948 1,889,474 944,737 2,834,212 1,417,106 708,553 2,125,660 1,062,830 531,415 1,594,246 797,123 2,391,370 1,195,685 3,587,056 1,793,528 896,764 448,382 224,191 672,574 336,287 1,008,862 504,431 1,513,294 756,647 2,269,942 1,134,971 3,404,914 1,702,457 5,107,372 2,553,686 1,276,843 3,830,530 1,915,265 5,745,796 2,872,898 1,436,449 4,309,348 2,154,674 1,077,337 3,232,012 1,616,006 808,003 2,424,010 1,212,005 3,636,016 1,818,008 909,004 454,502 227,251 681,754 340,877 1,022,632 511,316 255,658 127,829 383,488 191,744 95,872 47,936 23,968