2² × 5 × 13 × 557

Prime Factor Structure

Factorization String 2^2 × 5 × 13 × 557

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 328,104

Proper Divisor Sum 183,284

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #144817 ← → #144829

1 2 4 5 10 13 20 26 52 65 130 260 557 1,114 2,228 2,785 5,570 7,241 11,140 14,482 28,964 36,205 72,410 144,820

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

144,820 72,410 36,205 108,616 54,308 27,154 13,577 40,732 20,366 10,183 30,550 15,275 45,826 22,913 68,740 34,370 17,185 51,556 25,778 12,889 38,668 19,334 9,667 29,002 14,501 43,504 21,752 10,876 5,438 2,719 8,158 4,079 12,238 6,119 18,358 9,179 27,538 13,769 41,308 20,654 10,327 30,982 15,491 46,474 23,237 69,712 34,856 17,428 8,714 4,357 13,072 6,536 3,268 1,634 817 2,452 1,226 613 1,840 920

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