5 × 7 × 31 × 757

Prime Factor Structure

Factorization String 5 × 7 × 31 × 757

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,164,288

Proper Divisor Sum 342,943

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #821333 ← → #821377

1 5 7 31 35 155 217 757 1,085 3,785 5,299 23,467 26,495 117,335 164,269 821,345

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

821,345 2,464,036 1,232,018 616,009 1,848,028 924,014 462,007 1,386,022 693,011 2,079,034 1,039,517 3,118,552 1,559,276 779,638 389,819 1,169,458 584,729 1,754,188 877,094 438,547 1,315,642 657,821 1,973,464 986,732 493,366 246,683 740,050 370,025 1,110,076 555,038 277,519 832,558 416,279 1,248,838 624,419 1,873,258 936,629 2,809,888 1,404,944 702,472 351,236 175,618 87,809 263,428 131,714 65,857 197,572 98,786 49,393 148,180 74,090 37,045 111,136 55,568 27,784 13,892 6,946 3,473 10,420 5,210

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