21720067512

Names of 21720067512

• Cardinal: 21720067512 can be written as Twenty-one billion, seven hundred twenty million, sixty-seven thousand, five hundred twelve.

Scientific notation

• Scientific notation: 2.1720067512 × 10¹⁰

Factors of 21720067512

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 468

Divisors of 21720067512

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 19 22 24 26 33 38 39 44 47 52 57 66 76 78 88 94 104 114 132 141 143 152 156 188 209 228 247 264 282 286 312 361 373 376 418 429 456 494 517 564 572 611 627 722 741 746 836 858 893 988 1034 1083 1119 1128 1144 1222 1254 1444 1482 1492 1551 1672 1716 1786 1833 1976 2068 2166 2238 2444 2508 2679 2717 2888 2964 2984 3102 3432 3572 3666 3971 4103 4136 4332 4476 4693 4849 4888 5016 5358 5434 5928 6204 6721 7087 7144 7332 7942 8151 8206 8664 8952 9386 9698 9823 10716 10868 11609 11913 12309 12408 13442 14079 14174 14547 14664 15884 16302 16412 16967 17531 18772 19396 19646 20163 21261 21432 21736 23218 23826 24618 26884 28158 28348 29094 29469 31768 32604 32824 33934 34827 35062 37544 38792 39292 40326 42522 46436 47652 49236 50901 51623 52593 53339 53768 56316 56696 58188 58938 65208 67868 69654 70124 77957 78584 80652 85044 92131 92872 95304 98472 101802 103246 105186 106678 112632 116376 117876 127699 134653 135736 139308 140248 154869 155914 160017 161304 170088 184262 186637 192841 203604 206492 210372 213356 220571 227903 233871 235752 255398 269306 276393 278616 309738 311828 320034 333089 368524 373274 383097 385682 403959 407208 412984 420744 426712 441142 455806 467742 510796 538612 552786 559911 578523 619476 623656 640068 661713 666178 683709 737048 746548 766194 771364 807918 882284 911612 935484 999267 1013441 1021592 1077224 1105572 1119822 1157046 1238952 1280136 1323426 1332356 1367418 1481183 1493096 1532388 1542728 1615836 1750489 1764568 1823224 1870968 1998534 2026882 2211144 2239644 2314092 2426281 2506933 2646852 2664712 2734836 2962366 3040323 3064776 3231672 3500978 3663979 3997068 4053764 4330157 4443549 4479288 4628184 4852562 5013866 5251467 5293704 5469672 5924732 6080646 6328691 7001956 7278843 7327958 7520799 7994136 8107528 8660314 8887098 9705124 10027732 10502934 10991937 11849464 12161292 12657382 12990471 14003912 14557686 14655916 15041598 17320628 17774196 18986073 19255379 19410248 20055464 21005868 21983874 24322584 25314764 25980942 29115372 29311832 30083196 34641256 35548392 37972146 38510758 42011736 43967748 47631727 50629528 51961884 57766137 58230744 60166392 69615601 75944292 77021516 82272983 87935496 95263454 103923768 115532274 139231202 142895181 151888584 154043032 164545966 190526908 208846803 231064548 246818949 278462404 285790362 329091932 381053816 417693606 462129096 493637898 556924808 571580724 658183864 835387212 905002813 987275796 1143161448 1670774424 1810005626 1974551592 2715008439 3620011252 5430016878 7240022504 10860033756 21720067512
• Sum of all divisors σ(n): 68944296960
• Sum of proper divisors (its aliquot sum) s(n): 47224229448
• 21720067512 is an abundant number, because the sum of its proper divisors (47224229448) is greater than itself. Its abundance is 25504161936

Bases of 21720067512

• Binary: 10100001110100111011110110110111000₂
• Hexadecimal: 0x50E9DEDB8
• Base-36: 9Z7KFCO

Squares and roots of 21720067512

• 21720067512 squared (21720067512²) is 471761332725837870144
• 21720067512 cubed (21720067512³) is 10246687996356293526293969161728
• The square root of 21720067512 is 147377.2964604791
• The cube root of 21720067512 is 2790.1039906769

Scales and comparisons

• 21,720,067,512 seconds is equal to 690 years, 32 weeks, 5 days, 16 hours, 5 minutes, 12 seconds.
• To count from 1 to 21,720,067,512 would take you about one thousand, three hundred eighty-one 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 21720067512 cubic inches would be around 232.5 feet tall.

Recreational maths with 21720067512

• 21720067512 backwards is 21576002712
• 21720067512 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21720067512's digits is 33
• More coming soon!