2 × 13 × 53 × 157

Prime Factor Structure

Factorization String 2 × 13 × 53 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 358,344

Proper Divisor Sum 141,998

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #216329 ← → #216347

1 2 13 26 53 106 157 314 689 1,378 2,041 4,082 8,321 16,642 108,173 216,346

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

216,346 108,173 324,520 162,260 81,130 40,565 121,696 60,848 30,424 15,212 7,606 3,803 11,410 5,705 17,116 8,558 4,279 12,838 6,419 19,258 9,629 28,888 14,444 7,222 3,611 10,834 5,417 16,252 8,126 4,063 12,190 6,095 18,286 9,143 27,430 13,715 41,146 20,573 61,720 30,860 15,430 7,715 23,146 11,573 34,720 17,360 8,680 4,340 2,170 1,085 3,256 1,628 814 407 1,222 611 1,834 917 2,752 1,376

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