21029479375872

Names of 21029479375872

• Cardinal: 21029479375872 can be written as Twenty-one trillion, twenty-nine billion, four hundred seventy-nine million, three hundred seventy-five thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.1029479375872 × 10¹³

Factors of 21029479375872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 391247

Divisors of 21029479375872

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 37 43 44 48 64 66 74 86 88 96 111 128 129 132 148 172 176 192 222 256 258 264 296 344 352 384 407 444 473 512 516 528 592 688 704 768 814 888 946 1024 1032 1056 1184 1221 1376 1408 1419 1536 1591 1628 1776 1892 2064 2112 2368 2442 2752 2816 2838 3072 3182 3256 3552 3784 4128 4224 4736 4773 4884 5504 5632 5676 6364 6512 7104 7568 8256 8448 9472 9546 9768 11008 11264 11352 12728 13024 14208 15136 16512 16896 17501 18944 19092 19536 22016 22704 25456 26048 28416 30272 33024 33792 35002 37888 38184 39072 44032 45408 50912 52096 52503 56832 60544 66048 70004 76368 78144 90816 101824 104192 105006 113664 121088 132096 140008 152736 156288 181632 203648 208384 210012 242176 280016 305472 312576 363264 391151 407296 416768 420024 484352 560032 610944 625152 726528 782302 814592 840048 1120064 1173453 1221888 1250304 1453056 1564604 1629184 1680096 2240128 2346906 2443776 3129208 3360192 4302661 4480256 4693812 4887552 6258416 6720384 8605322 8960512 9387624 12516832 12907983 13440768 14472587 16819493 17210644 17921024 18775248 25033664 25815966 26881536 28945174 33638986 34421288 37550496 43417761 50067328 50458479 51631932 53763072 57890348 67277972 68842576 75100992 86835522 100134656 100916958 103263864 115780696 134555944 137685152 150201984 159198457 173671044 185014423 200269312 201833916 206527728 231561392 269111888 275370304 300403968 318396914 347342088 370028846 400538624 403667832 413055456 463122784 477595371 538223776 550740608 555043269 600807936 622321241 636793828 694684176 740057692 807335664 826110912 926245568 955190742 1076447552 1101481216 1110086538 1201615872 1244642482 1273587656 1389368352 1480115384 1614671328 1652221824 1852491136 1866963723 1910381484 2152895104 2202962432 2220173076 2489284964 2547175312 2778736704 2960230768 3229342656 3304443648 3704982272 3733927446 3820762968 4305790208 4405924864 4440346152 4978569928 5094350624 5557473408 5920461536 6458685312 6608887296 6845533651 7409964544 7467854892 7641525936 8611580416 8880692304 9957139856 10188701248 11114946816 11840923072 12917370624 13217774592 13691067302 14819929088 14935709784 15283051872 17223160832 17761384608 19914279712 20377402496 20536600953 22229893632 23681846144 25834741248 27382134604 29871419568 30566103744 35522769216 39828559424 40754804992 41073201906 44459787264 47363692288 51669482496 54764269208 59742839136 61132207488 71045538432 79657118848 81509609984 82146403812 94727384576 109528538416 119485678272 122264414976 142091076864 159314237696 163019219968 164292807624 189454769152 219057076832 238971356544 244528829952 284182153728 318628475392 328585615248 438114153664 477942713088 489057659904 568364307456 637256950784 657171230496 876228307328 955885426176 1314342460992 1752456614656 1911770852352 2628684921984 3504913229312 5257369843968 7009826458624 10514739687936 21029479375872
• Sum of all divisors σ(n): 64260027684864
• Sum of proper divisors (its aliquot sum) s(n): 43230548308992
• 21029479375872 is an abundant number, because the sum of its proper divisors (43230548308992) is greater than itself. Its abundance is 22201068933120

Bases of 21029479375872

• Binary: 100110010000001001110101001011110010000000000₂
• Hexadecimal: 0x13204EA5E400
• Base-36: 7GCT51ZPC

Squares and roots of 21029479375872

• 21029479375872 squared (21029479375872²) is 442239002820225802655760384
• 21029479375872 cubed (21029479375872³) is 9300055989014137760251370120185903054848
• The square root of 21029479375872 is 4585791.0305499093
• The cube root of 21029479375872 is 27602.1454678337

Scales and comparisons

• 21,029,479,375,872 seconds is equal to 668,672 years, 20 weeks, 4 days, 51 minutes, 12 seconds.
• To count from 1 to 21,029,479,375,872 would take you about one million, six hundred seventy-one thousand, six 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 21029479375872 cubic inches would be around 2300.2 feet tall.

Recreational maths with 21029479375872

• 21029479375872 backwards is 27857397492012
• 21029479375872 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21029479375872's digits is 66
• More coming soon!