3 × 5² × 19 × 43

Prime Factor Structure

Factorization String 3 × 5^2 × 19 × 43

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 109,120

Proper Divisor Sum 47,845

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #61261 ← → #61283

1 3 5 15 19 25 43 57 75 95 129 215 285 475 645 817 1,075 1,425 2,451 3,225 4,085 12,255 20,425 61,275

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

61,275 183,826 91,913 275,740 137,870 68,935 206,806 103,403 310,210 155,105 465,316 232,658 116,329 348,988 174,494 87,247 261,742 130,871 392,614 196,307 588,922 294,461 883,384 441,692 220,846 110,423 331,270 165,635 496,906 248,453 745,360 372,680 186,340 93,170 46,585 139,756 69,878 34,939 104,818 52,409 157,228 78,614 39,307 117,922 58,961 176,884 88,442 44,221 132,664 66,332 33,166 16,583 49,750 24,875 74,626 37,313 111,940 55,970 27,985 83,956

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