19999993728

Names of 19999993728

• Cardinal: 19999993728 can be written as Nineteen billion, nine hundred ninety-nine million, nine hundred ninety-three thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.9999993728 × 10¹⁰

Factors of 19999993728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 439

Divisors of 19999993728

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 16 22 24 26 31 32 33 39 44 48 52 62 64 66 78 88 93 96 104 124 128 132 143 156 176 186 192 208 248 264 286 312 341 352 372 379 384 403 416 429 496 528 572 624 682 704 744 758 806 832 858 961 992 1023 1056 1137 1144 1209 1248 1364 1408 1488 1516 1612 1664 1716 1922 1984 2046 2112 2274 2288 2418 2496 2728 2883 2976 3032 3224 3432 3844 3968 4092 4169 4224 4433 4548 4576 4836 4927 4992 5456 5766 5952 6064 6448 6864 7688 8184 8338 8866 9096 9152 9672 9854 10571 10912 11532 11749 11904 12128 12493 12507 12896 13299 13728 14781 15376 16368 16676 17732 18192 18304 19344 19708 21142 21824 23064 23498 24256 24986 25014 25792 26598 27456 29562 30752 31713 32736 33352 35247 35464 36384 37479 38688 39416 42284 43648 46128 46996 48512 49972 50028 51584 53196 54197 54912 59124 61504 63426 65472 66704 70494 70928 72768 74958 77376 78832 84568 92256 93992 99944 100056 106392 108394 118248 123008 126852 129239 130944 133408 137423 140988 141856 145536 149916 152737 154752 157664 162591 169136 184512 187984 199888 200112 212784 216788 236496 253704 258478 266816 274846 281976 283712 299832 305474 315328 325182 338272 364219 369024 375968 387717 399776 400224 412269 425568 433576 458211 472992 507408 516956 533632 549692 563952 567424 599664 610948 630656 650364 676544 728438 751936 775434 799552 800448 824538 851136 867152 916422 945984 1014816 1033912 1092657 1099384 1127904 1199328 1221896 1300728 1353088 1456876 1503872 1550868 1599104 1600896 1649076 1680107 1702272 1734304 1832844 1891968 2029632 2067824 2185314 2198768 2255808 2398656 2443792 2601456 2913752 3101736 3298152 3360214 3468608 3665688 4006409 4059264 4135648 4370628 4397536 4511616 4734847 4797312 4887584 5040321 5202912 5827504 6203472 6596304 6720428 6937216 7331376 8012818 8271296 8741256 8795072 9469694 9775168 10080642 10405824 11655008 12019227 12406944 13192608 13440856 14204541 14662752 16025636 16542592 17482512 17590144 18939388 19550336 20161284 20811648 23310016 24038454 24813888 26385216 26881712 28409082 29325504 32051272 34965024 37878776 40322568 46620032 48076908 49627776 52083317 52770432 53763424 56818164 58651008 64102544 69930048 75757552 80645136 96153816 104166634 107526848 113636328 128205088 139860096 151515104 156249951 161290272 192307632 208333268 215053696 227272656 256410176 303030208 312499902 322580544 384615264 416666536 454545312 512820352 606060416 624999804 645161088 769230528 833333072 909090624 1249999608 1538461056 1666666144 1818181248 2499999216 3333332288 4999998432 6666664576 9999996864 19999993728
• Sum of all divisors σ(n): 64660982400
• Sum of proper divisors (its aliquot sum) s(n): 44660988672
• 19999993728 is an abundant number, because the sum of its proper divisors (44660988672) is greater than itself. Its abundance is 24660994944

Bases of 19999993728

• Binary: 10010101000000101111010111110000000₂
• Hexadecimal: 0x4A817AF80
• Base-36: 96RH9XC

Squares and roots of 19999993728

• 19999993728 squared (19999993728²) is 399999749120039337984
• 19999993728 cubed (19999993728³) is 7999992473602360278793272164352
• The square root of 19999993728 is 141421.3340624391
• The cube root of 19999993728 is 2714.4173328477

Scales and comparisons

• 19,999,993,728 seconds is equal to 635 years, 48 weeks, 5 days, 9 hours, 48 minutes, 48 seconds.
• To count from 1 to 19,999,993,728 would take you about one thousand, two hundred seventy-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 19999993728 cubic inches would be around 226.2 feet tall.

Recreational maths with 19999993728

• 19999993728 backwards is 82739999991
• The number of decimal digits it has is: 11
• The sum of 19999993728's digits is 75
• More coming soon!