6,438,478

2 × 17 × 409 × 463

6,438,478 is even and not a perfect square. Its factorization is 2 × 17 × 409 × 463 and its 16 divisors sum to 10,272,960.

Prime Factor Structure

Factorization String 2 × 17 × 409 × 463

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 10,272,960

Proper Divisor Sum 3,834,482

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #6438463 ← → #6438539

1 2 17 34 409 463 818 926 6,953 7,871 13,906 15,742 189,367 378,734 3,219,239 6,438,478

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

6,438,478 3,219,239 9,657,718 4,828,859 14,486,578 7,243,289 21,729,868 10,864,934 5,432,467 16,297,402 8,148,701 24,446,104 12,223,052 6,111,526 3,055,763 9,167,290 4,583,645 13,750,936 6,875,468 3,437,734 1,718,867 5,156,602 2,578,301 7,734,904 3,867,452 1,933,726 966,863 2,900,590 1,450,295 4,350,886 2,175,443 6,526,330 3,263,165 9,789,496 4,894,748 2,447,374 1,223,687 3,671,062 1,835,531 5,506,594 2,753,297 8,259,892 4,129,946 2,064,973 6,194,920 3,097,460 1,548,730 774,365 2,323,096 1,161,548 580,774 290,387 871,162 435,581 1,306,744 653,372 326,686 163,343 490,030 245,015