21,392,496

2⁴ × 3² × 53 × 2803

Prime Factor Structure

Factorization String 2^4 × 3^2 × 53 × 2803

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 60

Divisor Sum (σ) 61,020,648

Proper Divisor Sum 39,628,152

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #21392491 ← → #21392509

1 2 3 4 6 8 9 12 16 18 24 36 48 53 72 106 144 159 212 318 424 477 636 848 954 1,272 1,908 2,544 2,803 3,816 5,606 7,632 8,409 11,212 16,818 22,424 25,227 33,636 44,848 50,454 67,272 100,908 134,544 148,559 201,816 297,118 403,632 445,677 594,236 891,354 1,188,472 1,337,031 1,782,708 2,376,944 2,674,062 3,565,416 5,348,124 7,130,832 10,696,248 21,392,496

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

21,392,496 10,696,248 5,348,124 2,674,062 1,337,031 4,011,094 2,005,547 6,016,642 3,008,321 9,024,964 4,512,482 2,256,241 6,768,724 3,384,362 1,692,181 5,076,544 2,538,272 1,269,136 634,568 317,284 158,642 79,321 237,964 118,982 59,491 178,474 89,237 267,712 133,856 66,928 33,464 16,732 8,366 4,183 12,550 6,275 18,826 9,413 28,240 14,120 7,060 3,530 1,765 5,296 2,648 1,324 662 331 994 497 1,492 746 373 1,120 560 280 140 70 35 106

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