2 × 19 × 137 × 139

Prime Factor Structure

Factorization String 2 × 19 × 137 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,159,200

Proper Divisor Sum 435,566

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #723623 ← → #723661

1 2 19 38 137 139 274 278 2,603 2,641 5,206 5,282 19,043 38,086 361,817 723,634

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

723,634 361,817 1,085,452 542,726 271,363 814,090 407,045 1,221,136 610,568 305,284 152,642 76,321 228,964 114,482 57,241 171,724 85,862 42,931 128,794 64,397 193,192 96,596 48,298 24,149 72,448 36,224 18,112 9,056 4,528 2,264 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367 4,102 2,051 6,154 3,077 9,232 4,616

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