21712915840

Names of 21712915840

• Cardinal: 21712915840 can be written as Twenty-one billion, seven hundred twelve million, nine hundred fifteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.171291584 × 10¹⁰

Factors of 21712915840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 350

Divisors of 21712915840

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 31 32 35 40 44 55 56 61 62 64 70 77 80 88 110 112 122 124 128 140 154 155 160 176 217 220 224 233 244 248 280 305 308 310 320 341 352 385 427 434 440 448 466 488 496 560 610 616 620 640 671 682 704 770 854 868 880 896 932 976 992 1085 1120 1165 1220 1232 1240 1342 1364 1408 1540 1631 1705 1708 1736 1760 1864 1891 1952 1984 2135 2170 2240 2330 2387 2440 2464 2480 2563 2684 2728 3080 3262 3355 3410 3416 3472 3520 3728 3782 3904 3968 4270 4340 4480 4660 4697 4774 4880 4928 4960 5126 5368 5456 6160 6524 6710 6820 6832 6944 7040 7223 7456 7564 7808 8155 8540 8680 9320 9394 9455 9548 9760 9856 9920 10252 10736 10912 11935 12320 12815 13048 13237 13420 13640 13664 13888 14213 14446 14912 15128 16310 17080 17360 17941 18640 18788 18910 19096 19520 19840 20504 20801 21472 21824 23485 23870 24640 25630 26096 26474 26840 27280 27328 27776 28426 28892 29824 30256 32620 34160 34720 35882 36115 37280 37576 37820 38192 39040 41008 41602 42944 43648 46970 47740 49280 50561 51260 52192 52948 53680 54560 54656 56852 57784 60512 65240 66185 68320 69440 71065 71764 72230 74560 75152 75640 76384 79453 82016 83204 85888 89705 93940 95480 99491 101122 102520 104005 104384 105896 107360 109120 113704 115568 121024 130480 132370 136640 138880 142130 143528 144460 145607 149120 150304 151280 152768 156343 158906 164032 166408 179410 187880 190960 198982 202244 205040 208010 208768 211792 214720 218240 227408 231136 242048 252805 260960 264740 273280 284260 287056 288920 291214 300608 302560 305536 312686 317812 328064 332816 358820 375760 381920 397265 397964 404488 410080 416020 423584 429440 440603 454816 462272 497455 505610 521920 529480 556171 568520 574112 577840 582428 601216 605120 625372 635624 665632 717640 728035 751520 763840 781715 794530 795928 808976 820160 832040 847168 881206 909632 924544 994910 1011220 1043840 1058960 1094401 1112342 1137040 1148224 1155680 1164856 1210240 1250744 1271248 1331264 1435280 1456070 1503040 1527680 1563430 1589060 1591856 1617952 1640320 1664080 1694336 1762412 1819264 1989820 2022440 2117920 2188802 2203015 2224684 2274080 2296448 2311360 2329712 2501488 2542496 2662528 2780855 2870560 2912140 3006080 3084221 3126860 3178120 3183712 3235904 3328160 3524824 3979640 4044880 4235840 4377604 4406030 4449368 4548160 4622720 4659424 4846633 5002976 5084992 5472005 5561710 5741120 5824280 6168442 6253720 6356240 6367424 6471808 6656320 7049648 7959280 8089760 8471680 8755208 8812060 8898736 9096320 9318848 9693266 10005952 10169984 10944010 11123420 11482240 11648560 12336884 12507440 12712480 12734848 13312640 14099296 15421105 15918560 16179520 17510416 17624120 17797472 18637696 19386532 20011904 21888020 22246840 23297120 24233165 24673768 25014880 25424960 28198592 30842210 31837120 32359040 33926431 35020832 35248240 35594944 38773064 43776040 44493680 46594240 48466330 49347536 50029760 50849920 56397184 61684420 63674240 67852862 70041664 70496480 71189888 77546128 87552080 88987360 93188480 96932660 98695072 100059520 123368840 135705724 140083328 140992960 155092256 169632155 175104160 177974720 193865320 197390144 246737680 271411448 281985920 310184512 339264310 350208320 355949440 387730640 394780288 493475360 542822896 620369024 678528620 700416640 775461280 986950720 1085645792 1357057240 1550922560 1973901440 2171291584 2714114480 3101845120 4342583168 5428228960 10856457920 21712915840
• Sum of all divisors σ(n): 68189921280
• Sum of proper divisors (its aliquot sum) s(n): 46477005440
• 21712915840 is an abundant number, because the sum of its proper divisors (46477005440) is greater than itself. Its abundance is 24764089600

Bases of 21712915840

• Binary: 10100001110001100001100110110000000₂
• Hexadecimal: 0x50E30CD80
• Base-36: 9Z3B534

Squares and roots of 21712915840

• 21712915840 squared (21712915840²) is 471450714274922905600
• 21712915840 cubed (21712915840³) is 10236569681759287671781064704000
• The square root of 21712915840 is 147353.0313227387
• The cube root of 21712915840 is 2789.7977285989

Scales and comparisons

• 21,712,915,840 seconds is equal to 690 years, 20 weeks, 6 days, 21 hours, 30 minutes, 40 seconds.
• To count from 1 to 21,712,915,840 would take you about one thousand, three hundred eighty years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21712915840 cubic inches would be around 232.5 feet tall.

Recreational maths with 21712915840

• 21712915840 backwards is 04851921712
• 21712915840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21712915840's digits is 40
• More coming soon!