2 × 13 × 139 × 191

Prime Factor Structure

Factorization String 2 × 13 × 139 × 191

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,128,960

Proper Divisor Sum 438,686

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #690271 ← → #690281

1 2 13 26 139 191 278 382 1,807 2,483 3,614 4,966 26,549 53,098 345,137 690,274

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

690,274 345,137 1,035,412 517,706 258,853 776,560 388,280 194,140 97,070 48,535 145,606 72,803 218,410 109,205 327,616 163,808 81,904 40,952 20,476 10,238 5,119 15,358 7,679 23,038 11,519 34,558 17,279 51,838 25,919 77,758 38,879 116,638 58,319 174,958 87,479 262,438 131,219 393,658 196,829 590,488 295,244 147,622 73,811 221,434 110,717 332,152 166,076 83,038 41,519 124,558 62,279 186,838 93,419 280,258 140,129 420,388 210,194 105,097 315,292 157,646

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.