20638818816

Names of 20638818816

• Cardinal: 20638818816 can be written as Twenty billion, six hundred thirty-eight million, eight hundred eighteen thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.0638818816 × 10¹⁰

Factors of 20638818816

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 377

Divisors of 20638818816

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 49 56 64 66 77 84 88 96 97 98 112 128 132 147 154 168 176 192 194 196 224 231 256 257 264 291 294 308 336 352 384 388 392 448 462 512 514 528 539 582 588 616 672 679 704 768 771 776 784 896 924 1028 1056 1067 1078 1164 1176 1232 1344 1358 1408 1536 1542 1552 1568 1617 1792 1799 1848 2037 2056 2112 2134 2156 2328 2352 2464 2688 2716 2816 2827 3084 3104 3136 3201 3234 3584 3598 3696 4074 4112 4224 4268 4312 4656 4704 4753 4928 5376 5397 5432 5632 5654 6168 6208 6272 6402 6468 7196 7392 7469 8148 8224 8448 8481 8536 8624 9312 9408 9506 9856 10752 10794 10864 11308 12336 12416 12544 12593 12804 12936 14259 14392 14784 14938 16296 16448 16896 16962 17072 17248 18624 18816 19012 19712 19789 21588 21728 22407 22616 24672 24832 24929 25088 25186 25608 25872 28518 28784 29568 29876 32592 32896 33924 34144 34496 37248 37632 37779 38024 39424 39578 43176 43456 44814 45232 49344 49664 49858 50372 51216 51744 52283 57036 57568 59136 59367 59752 65184 65792 67848 68288 68992 74496 74787 75264 75558 76048 79156 86352 86912 89628 90464 98688 99716 100744 102432 103488 104566 114072 115136 118272 118734 119504 130368 131584 135696 136576 137984 138523 148992 149574 151116 152096 156849 158312 172704 173824 174503 179256 180928 197376 199432 201488 204864 206976 209132 228144 230272 237468 239008 260736 271392 273152 274219 275968 277046 299148 302232 304192 313698 316624 345408 347648 349006 358512 361856 394752 398864 402976 409728 413952 415569 418264 456288 460544 474936 478016 521472 523509 542784 546304 548438 554092 598296 604464 608384 627396 633248 690816 698012 717024 723712 797728 805952 819456 822657 827904 831138 836528 912576 921088 949872 956032 1042944 1047018 1085568 1096876 1108184 1196592 1208928 1216768 1221521 1254792 1266496 1381632 1396024 1434048 1447424 1595456 1611904 1638912 1645314 1662276 1673056 1825152 1899744 1912064 1919533 2094036 2171136 2193752 2216368 2393184 2417856 2433536 2443042 2509584 2532992 2763264 2792048 2868096 3190912 3223808 3290628 3324552 3346112 3650304 3664563 3799488 3824128 3839066 4188072 4342272 4387504 4432736 4786368 4835712 4886084 5019168 5065984 5584096 5736192 5758599 6381824 6447616 6581256 6649104 6692224 7300608 7329126 7598976 7678132 8376144 8775008 8865472 9572736 9671424 9772168 10038336 10131968 11168192 11472384 11517198 12763648 13162512 13298208 13384448 13436731 14658252 15197952 15356264 16752288 17550016 17730944 19145472 19342848 19544336 20076672 22336384 23034396 26325024 26596416 26768896 26873462 29316504 30395904 30712528 33504576 35100032 35461888 38290944 39088672 40153344 40310193 44672768 46068792 52650048 53192832 53746924 58633008 61425056 67009152 70200064 70923776 78177344 80306688 80620386 89345536 92137584 105300096 106385664 107493848 117266016 122850112 134018304 140400128 156354688 161240772 184275168 210600192 212771328 214987696 234532032 245700224 268036608 312709376 322481544 368550336 421200384 429975392 469064064 491400448 625418752 644963088 737100672 859950784 938128128 982800896 1289926176 1474201344 1719901568 1876256256 2579852352 2948402688 3439803136 5159704704 6879606272 10319409408 20638818816
• Sum of all divisors σ(n): 70768095552
• Sum of proper divisors (its aliquot sum) s(n): 50129276736
• 20638818816 is an abundant number, because the sum of its proper divisors (50129276736) is greater than itself. Its abundance is 29490457920

Bases of 20638818816

• Binary: 10011001110001010110110001000000000₂
• Hexadecimal: 0x4CE2B6200
• Base-36: 9HBTIIO

Squares and roots of 20638818816

• 20638818816 squared (20638818816²) is 425960842119675641856
• 20638818816 cubed (20638818816³) is 8791328643218766960954489962496
• The square root of 20638818816 is 143662.1690494751
• The cube root of 20638818816 is 2743.0156124711

Scales and comparisons

• 20,638,818,816 seconds is equal to 656 years, 13 weeks, 5 hours, 13 minutes, 36 seconds.
• To count from 1 to 20,638,818,816 would take you about one thousand, three hundred twelve 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 20638818816 cubic inches would be around 228.6 feet tall.

Recreational maths with 20638818816

• 20638818816 backwards is 61881883602
• The number of decimal digits it has is: 11
• The sum of 20638818816's digits is 51
• More coming soon!