21979077792

Names of 21979077792

• Cardinal: 21979077792 can be written as Twenty-one billion, nine hundred seventy-nine million, seventy-seven thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 2.1979077792 × 10¹⁰

Factors of 21979077792

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 74

Divisors of 21979077792

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 19 21 24 28 32 38 42 43 48 49 56 57 76 84 86 96 98 112 114 129 133 147 152 168 172 196 224 228 258 266 294 301 304 336 343 344 361 392 399 456 516 532 588 602 608 672 686 688 722 784 798 817 903 912 931 1029 1032 1064 1083 1176 1204 1372 1376 1444 1568 1596 1634 1806 1824 1849 1862 2058 2064 2107 2128 2166 2352 2408 2451 2527 2744 2793 2888 3192 3268 3612 3698 3724 4116 4128 4214 4256 4332 4704 4816 4902 5054 5488 5547 5586 5719 5776 6321 6384 6517 6536 7224 7396 7448 7581 8232 8428 8664 9632 9804 10108 10976 11094 11172 11438 11552 12642 12768 12943 13034 13072 14448 14749 14792 14896 15162 15523 16464 16856 17157 17328 17689 19551 19608 20216 22188 22344 22876 25284 25886 26068 26144 28896 29498 29584 29792 30324 31046 32928 33712 34314 34656 35131 35378 38829 39102 39216 40033 40432 44247 44376 44688 45752 46569 50568 51772 52136 53067 58996 59168 60648 62092 67424 68628 70262 70756 77658 78204 78432 80066 80864 88494 88752 89376 90601 91504 93138 101136 103544 104272 105393 106134 108661 117992 120099 121296 123823 124184 137256 140524 141512 155316 156408 160132 176988 177504 181202 183008 186276 202272 207088 208544 210786 212268 217322 235984 240198 242592 245917 247646 248368 271803 274512 280231 281048 283024 310632 312816 320264 325983 353976 362404 371469 372552 414176 421572 424536 434644 471968 480396 491834 495292 496736 543606 549024 560462 562096 566048 621264 625632 634207 640528 651966 667489 707952 724808 737751 742938 745104 760627 840693 843144 849072 869288 960792 983668 990584 1087212 1120924 1124192 1242528 1268414 1281056 1303932 1334978 1415904 1449616 1475502 1485876 1490208 1521254 1681386 1686288 1698144 1721419 1738576 1902621 1921584 1967336 1981168 2002467 2174424 2241848 2281881 2536828 2607864 2669956 2899232 2951004 2971752 3042508 3362772 3372576 3442838 3477152 3805242 3843168 3934672 3962336 4004934 4348848 4483696 4563762 4672423 5073656 5164257 5215728 5324389 5339912 5902008 5943504 6085016 6725544 6885676 7610484 7869344 8009868 8697696 8967392 9127524 9344846 10147312 10328514 10431456 10648778 10679824 11804016 11887008 12049933 12170032 13451088 13771352 14017269 15220968 15973167 16019736 18255048 18689692 20294624 20657028 21297556 21359648 23608032 24099866 24340064 26902176 27542704 28034538 30441936 31946334 32039472 32706961 36149799 36510096 37379384 41314056 42595112 48199732 55085408 56069076 60883872 63892668 64078944 65413922 72299598 73020192 74758768 82628112 85190224 96399464 98120883 112138152 127785336 130827844 144599196 149517536 165256224 170380448 192798928 196241766 224276304 228948727 255570672 261655688 289198392 385597856 392483532 448552608 457897454 511141344 523311376 578396784 686846181 784967064 915794908 1046622752 1156793568 1373692362 1569934128 1831589816 2747384724 3139868256 3663179632 5494769448 7326359264 10989538896 21979077792
• Sum of all divisors σ(n): 72700286400
• Sum of proper divisors (its aliquot sum) s(n): 50721208608
• 21979077792 is an abundant number, because the sum of its proper divisors (50721208608) is greater than itself. Its abundance is 28742130816

Bases of 21979077792

• Binary: 10100011110000011100001110010100000₂
• Hexadecimal: 0x51E0E1CA0
• Base-36: A3HRWYO

Squares and roots of 21979077792

• 21979077792 squared (21979077792²) is 483079860586787595264
• 21979077792 cubed (21979077792³) is 10617649835585519323688066777088
• The square root of 21979077792 is 148253.4242167783
• The cube root of 21979077792 is 2801.1507936283

Scales and comparisons

• 21,979,077,792 seconds is equal to 698 years, 45 weeks, 11 hours, 23 minutes, 12 seconds.
• To count from 1 to 21,979,077,792 would take you about one thousand, three hundred ninety-seven 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 21979077792 cubic inches would be around 233.4 feet tall.

Recreational maths with 21979077792

• 21979077792 backwards is 29777097912
• The number of decimal digits it has is: 11
• The sum of 21979077792's digits is 60
• More coming soon!