21420861696

Names of 21420861696

• Cardinal: 21420861696 can be written as Twenty-one billion, four hundred twenty million, eight hundred sixty-one thousand, six hundred ninety-six.

Scientific notation

• Scientific notation: 2.1420861696 × 10¹⁰

Factors of 21420861696

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 451

Divisors of 21420861696

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 17 18 24 26 27 32 34 36 37 39 48 51 52 54 64 68 72 74 78 96 102 104 108 111 117 128 136 144 148 153 156 192 204 208 216 221 222 234 256 272 288 296 306 312 333 351 379 384 408 416 432 442 444 459 468 481 544 576 592 612 624 629 663 666 702 758 768 816 832 864 884 888 918 936 962 999 1088 1137 1152 1184 1224 1248 1258 1326 1332 1404 1443 1516 1632 1664 1728 1768 1776 1836 1872 1887 1924 1989 1998 2176 2274 2304 2368 2448 2496 2516 2652 2664 2808 2886 3032 3264 3328 3411 3456 3536 3552 3672 3744 3774 3848 3978 3996 4329 4352 4548 4736 4896 4927 4992 5032 5304 5328 5616 5661 5772 5967 6064 6443 6528 6822 6912 7072 7104 7344 7488 7548 7696 7956 7992 8177 8658 9096 9472 9792 9854 9984 10064 10233 10608 10656 11232 11322 11544 11934 12128 12886 12987 13056 13644 14023 14144 14208 14688 14781 14976 15096 15392 15912 15984 16354 16983 17316 18192 19329 19584 19708 20128 20466 21216 21312 22464 22644 23088 23868 24256 24531 25772 25974 27288 28046 28288 28416 29376 29562 29952 30192 30784 31824 31968 32708 33966 34632 36384 38658 39168 39416 40256 40932 42069 42432 42624 44343 44928 45288 46176 47736 48512 49062 51544 51948 54576 56092 56576 57987 58752 59124 60384 61568 63648 63936 65416 67932 69264 72768 73593 77316 78832 80512 81864 83759 84138 84864 85248 88686 89856 90576 92352 95472 97024 98124 103088 103896 109152 112184 115974 117504 118248 120768 123136 126207 127296 127872 130832 133029 135864 138528 145536 147186 154632 157664 161024 163728 167518 168276 169728 173961 177372 181152 182299 184704 190944 196248 206176 207792 218304 220779 224368 231948 236496 238391 241536 251277 252414 254592 255744 261664 266058 271728 277056 291072 294372 309264 315328 327456 335036 336552 347922 354744 362304 364598 369408 378621 381888 392496 412352 415584 436608 441558 448736 463896 472992 476782 483072 502554 504828 509184 523328 532116 543456 546897 554112 588744 618528 630656 654912 670072 673104 695844 709488 715173 724608 729196 753831 757242 763776 784992 824704 831168 873216 883116 897472 927792 945984 953564 1005108 1009656 1046656 1064232 1086912 1093794 1108224 1177488 1237056 1261312 1309824 1340144 1346208 1391688 1418976 1430346 1449216 1458392 1507662 1514484 1527552 1569984 1640691 1649408 1662336 1766232 1794944 1855584 1891968 1907128 2010216 2019312 2093312 2128464 2145519 2173824 2187588 2261493 2354976 2474112 2619648 2680288 2692416 2783376 2837952 2860692 2916784 3015324 3028968 3099083 3139968 3281382 3324672 3532464 3589888 3711168 3783936 3814256 4020432 4038624 4256928 4291038 4347648 4375176 4522986 4709952 4922073 4948224 5360576 5384832 5566752 5675904 5721384 5833568 6030648 6057936 6198166 6279936 6436557 6562764 7064928 7422336 7628512 8040864 8077248 8513856 8582076 8750352 9045972 9297249 9419904 9844146 10721152 10769664 11133504 11351808 11442768 11667136 12061296 12115872 12396332 12873114 13125528 14129856 14844672 15257024 16081728 16154496 17027712 17164152 17500704 18091944 18594498 18839808 19688292 21442304 22267008 22885536 23334272 24122592 24231744 24792664 25746228 26251056 27891747 28259712 30514048 32163456 32308992 34055424 34328304 35001408 36183888 37188996 39376584 44534016 45771072 46668544 48245184 48463488 49585328 51492456 52502112 55783494 56519424 61028096 64326912 68656608 70002816 72367776 74377992 78753168 83675241 91542144 96490368 96926976 99170656 102984912 105004224 111566988 137313216 140005632 144735552 148755984 157506336 167350482 183084288 192980736 198341312 205969824 210008448 223133976 274626432 289471104 297511968 315012672 334700964 396682624 411939648 420016896 446267952 549252864 578942208 595023936 630025344 669401928 793365248 823879296 892535904 1190047872 1260050688 1338803856 1647758592 1785071808 2380095744 2677607712 3570143616 5355215424 7140287232 10710430848 21420861696
• Sum of all divisors σ(n): 74378707200
• Sum of proper divisors (its aliquot sum) s(n): 52957845504
• 21420861696 is an abundant number, because the sum of its proper divisors (52957845504) is greater than itself. Its abundance is 31536983808

Bases of 21420861696

• Binary: 10011111100110010000110100100000000₂
• Hexadecimal: 0x4FCC86900
• Base-36: 9U9FEO0

Squares and roots of 21420861696

• 21420861696 squared (21420861696²) is 458853315799159996416
• 21420861696 cubed (21420861696³) is 9829033416484817996202991681536
• The square root of 21420861696 is 146358.6748231891
• The cube root of 21420861696 is 2777.2329702725

Scales and comparisons

• 21,420,861,696 seconds is equal to 681 years, 6 weeks, 15 hours, 21 minutes, 36 seconds.
• To count from 1 to 21,420,861,696 would take you about one thousand, three hundred sixty-two 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 21420861696 cubic inches would be around 231.4 feet tall.

Recreational maths with 21420861696

• 21420861696 backwards is 69616802412
• The number of decimal digits it has is: 11
• The sum of 21420861696's digits is 45
• More coming soon!