20397138944

Names of 20397138944

• Cardinal: 20397138944 can be written as Twenty billion, three hundred ninety-seven million, one hundred thirty-eight thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 2.0397138944 × 10¹⁰

Factors of 20397138944

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 383

Divisors of 20397138944

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 4 7 8 13 14 16 23 26 28 31 32 46 52 56 62 64 91 92 104 112 124 128 161 182 184 208 217 224 248 256 299 307 322 364 368 403 416 434 448 496 512 598 614 644 713 728 736 806 832 868 896 992 1024 1196 1228 1288 1426 1456 1472 1612 1664 1736 1792 1984 2093 2149 2392 2456 2576 2821 2852 2912 2944 3224 3328 3472 3584 3968 3991 4186 4298 4784 4912 4991 5152 5642 5704 5824 5888 6448 6656 6944 7061 7168 7936 7982 8372 8596 9269 9517 9568 9824 9982 10304 11284 11408 11648 11776 12896 13312 13888 14122 15872 15964 16744 17192 18538 19034 19136 19648 19964 20608 22568 22816 23296 23552 25792 27776 27937 28244 31744 31928 33488 34384 37076 38068 38272 39296 39928 41216 45136 45632 46592 49427 51584 55552 55874 56488 63856 64883 66619 66976 68768 74152 76136 76544 78592 79856 82432 90272 91264 91793 93184 98854 103168 111104 111748 112976 123721 127712 129766 133238 133952 137536 148304 152272 153088 157184 159712 164864 180544 182528 183586 197708 206336 218891 222208 223496 225952 247442 255424 259532 266476 267904 275072 296608 304544 306176 314368 319424 361088 365056 367172 395416 412672 437782 446992 451904 494884 510848 519064 532952 535808 550144 593216 609088 638848 642551 722176 730112 734344 790832 866047 875564 893984 903808 989768 1021696 1038128 1065904 1071616 1100288 1186432 1218176 1277696 1285102 1444352 1468688 1532237 1581664 1732094 1751128 1787968 1807616 1979536 2043392 2076256 2131808 2143232 2200576 2372864 2436352 2555392 2570204 2845583 2888704 2937376 3064474 3163328 3464188 3502256 3575936 3615232 3959072 4086784 4152512 4263616 4745728 4872704 5110784 5140408 5691166 5874752 6128948 6326656 6928376 7004512 7151872 7230464 7918144 8305024 8527232 9491456 9745408 10280816 11382332 11749504 12257896 12653312 13856752 14009024 14303744 15836288 16610048 17054464 19919081 20561632 22764664 23499008 24515792 25306624 27713504 28018048 28607488 31672576 33220096 34108928 39838162 41123264 45529328 46998016 49031584 50613248 55427008 56036096 63345152 66440192 68217856 79676324 82246528 91058656 93996032 98063168 110854016 112072192 126690304 159352648 164493056 182117312 196126336 221708032 224144384 318705296 328986112 364234624 392252672 443416064 637410592 657972224 728469248 784505344 886832128 1274821184 1456938496 1569010688 2549642368 2913876992 5099284736 10198569472 20397138944
• Sum of all divisors σ(n): 54231023616
• Sum of proper divisors (its aliquot sum) s(n): 33833884672
• 20397138944 is an abundant number, because the sum of its proper divisors (33833884672) is greater than itself. Its abundance is 13436745728

Bases of 20397138944

• Binary: 10010111111110000111010010000000000₂
• Hexadecimal: 0x4BFC3A400
• Base-36: 9DBXH4W

Squares and roots of 20397138944

• 20397138944 squared (20397138944²) is 416043277100841435136
• 20397138944 cubed (20397138944³) is 8486092529742956251781355536384
• The square root of 20397138944 is 142818.5525203221
• The cube root of 20397138944 is 2732.2666726479

Scales and comparisons

• 20,397,138,944 seconds is equal to 648 years, 29 weeks, 2 days, 23 hours, 55 minutes, 44 seconds.
• To count from 1 to 20,397,138,944 would take you about one thousand, two 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 20397138944 cubic inches would be around 227.7 feet tall.

Recreational maths with 20397138944

• 20397138944 backwards is 44983179302
• The number of decimal digits it has is: 11
• The sum of 20397138944's digits is 50
• More coming soon!