21988536372

Names of 21988536372

• Cardinal: 21988536372 can be written as Twenty-one billion, nine hundred eighty-eight million, five hundred thirty-six thousand, three hundred seventy-two.

Scientific notation

• Scientific notation: 2.1988536372 × 10¹⁰

Factors of 21988536372

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 6419

Divisors of 21988536372

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 9 11 12 17 18 19 22 27 33 34 36 38 44 51 54 57 66 68 76 81 99 102 108 114 132 153 162 171 187 198 204 209 228 243 297 306 323 324 342 374 396 418 459 486 513 561 594 612 627 646 684 748 836 891 918 969 972 1026 1122 1188 1254 1292 1377 1539 1683 1782 1836 1881 1938 2052 2244 2508 2673 2754 2907 3078 3366 3553 3564 3762 3876 4131 4617 5049 5346 5508 5643 5814 6156 6367 6732 7106 7524 8262 8721 9234 10098 10659 10692 11286 11628 12734 14212 15147 16524 16929 17442 18468 19101 20196 21318 22572 25468 26163 30294 31977 33858 34884 38202 42636 45441 50787 52326 57303 60588 63954 67716 70037 76404 78489 90882 95931 101574 104652 108239 114606 120973 127908 140074 156978 171909 181764 191862 203148 210111 216478 229212 241946 280148 287793 313956 324717 343818 362919 383724 420222 432956 483892 515727 575586 630333 649434 687636 725838 840444 863379 974151 1031454 1088757 1151172 1190629 1260666 1298868 1330703 1451676 1547181 1726758 1890999 1948302 2056541 2062908 2177514 2381258 2521332 2661406 2922453 3094362 3266271 3453516 3571887 3781998 3896604 3992109 4113082 4355028 4762516 5322812 5672997 5844906 6169623 6188724 6532542 7143774 7563996 7984218 8226164 8767359 9798813 10715661 11345994 11689812 11976327 12339246 13065084 14287548 15968436 17018991 17534718 18508869 19597626 21431322 22621951 22691988 23952654 24678492 26302077 29396439 32146983 34037982 35069436 35928981 37017738 39195252 42862644 45243902 47905308 52604154 55526607 58792878 64293966 67865853 68075964 71857962 74035476 90487804 96440949 105208308 107786943 111053214 117585756 128587932 135731706 143715924 166579821 192881898 203597559 215573886 222106428 271463412 289322847 323360829 333159642 385763796 407195118 431147772 499739463 578645694 610792677 646721658 666319284 814390236 999478926 1157291388 1221585354 1293443316 1832378031 1998957852 2443170708 3664756062 5497134093 7329512124 10994268186 21988536372
• Sum of all divisors σ(n): 70094868480
• Sum of proper divisors (its aliquot sum) s(n): 48106332108
• 21988536372 is an abundant number, because the sum of its proper divisors (48106332108) is greater than itself. Its abundance is 26117795736

Bases of 21988536372

• Binary: 10100011110100111100111000000110100₂
• Hexadecimal: 0x51E9E7034
• Base-36: A3NEN90

Squares and roots of 21988536372

• 21988536372 squared (21988536372²) is 483495731782766922384
• 21988536372 cubed (21988536372³) is 10631363484012126875639084950848
• The square root of 21988536372 is 148285.3208244161
• The cube root of 21988536372 is 2801.5525561495

Scales and comparisons

• 21,988,536,372 seconds is equal to 699 years, 8 weeks, 4 days, 22 hours, 46 minutes, 12 seconds.
• To count from 1 to 21,988,536,372 would take you about one thousand, three hundred ninety-eight 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 21988536372 cubic inches would be around 233.5 feet tall.

Recreational maths with 21988536372

• 21988536372 backwards is 27363588912
• 21988536372 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21988536372's digits is 54
• More coming soon!