2² × 5 × 131 × 151

Prime Factor Structure

Factorization String 2^2 × 5 × 131 × 151

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 842,688

Proper Divisor Sum 447,068

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #395611 ← → #395621

1 2 4 5 10 20 131 151 262 302 524 604 655 755 1,310 1,510 2,620 3,020 19,781 39,562 79,124 98,905 197,810 395,620

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

395,620 197,810 98,905 296,716 148,358 74,179 222,538 111,269 333,808 166,904 83,452 41,726 20,863 62,590 31,295 93,886 46,943 140,830 70,415 211,246 105,623 316,870 158,435 475,306 237,653 712,960 356,480 178,240 89,120 44,560 22,280 11,140 5,570 2,785 8,356 4,178 2,089 6,268 3,134 1,567 4,702 2,351 7,054 3,527 10,582 5,291 15,874 7,937 23,812 11,906 5,953 17,860 8,930 4,465 13,396 6,698 3,349 10,048 5,024 2,512

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