18909758448

Names of 18909758448

• Cardinal: 18909758448 can be written as Eighteen billion, nine hundred nine million, seven hundred fifty-eight thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 1.8909758448 × 10¹⁰

Factors of 18909758448

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 284

Divisors of 18909758448

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 31 36 42 48 54 56 62 63 72 81 84 93 108 112 124 126 144 162 168 186 189 216 217 241 243 248 252 279 324 336 372 378 432 434 482 486 496 504 558 567 648 651 723 729 744 756 837 868 961 964 972 1008 1116 1134 1296 1302 1446 1458 1488 1512 1674 1687 1701 1736 1922 1928 1944 1953 2169 2232 2268 2511 2604 2883 2892 2916 3024 3348 3374 3402 3472 3844 3856 3888 3906 4338 4464 4536 5022 5061 5103 5208 5766 5784 5832 5859 6507 6696 6727 6748 6804 7471 7533 7688 7812 8649 8676 9072 10044 10122 10206 10416 11532 11568 11664 11718 13014 13392 13454 13496 13608 14942 15066 15183 15376 15624 17298 17352 17577 19521 20088 20181 20244 20412 22413 22599 23064 23436 25947 26028 26908 26992 27216 29884 30132 30366 31248 34596 34704 35154 39042 40176 40362 40488 40824 44826 45198 45549 46128 46872 51894 52056 52297 52731 53816 58563 59768 60264 60543 60732 67239 69192 70308 77841 78084 80724 80976 81648 89652 90396 91098 93744 103788 104112 104594 105462 107632 117126 119536 120528 121086 121464 134478 136647 138384 140616 155682 156168 156891 158193 161448 175689 179304 180792 181629 182196 201717 207576 209188 210924 231601 233523 234252 242172 242928 268956 273294 281232 311364 312336 313782 316386 322896 351378 358608 361584 363258 364392 403434 409941 415152 418376 421848 463202 467046 468504 470673 484344 537912 544887 546588 605151 622728 627564 632772 694803 700569 702756 726516 728784 806868 819882 836752 843696 926404 934092 937008 941346 968688 1075824 1089774 1093176 1210302 1229823 1245456 1255128 1265544 1389606 1401138 1405512 1412019 1453032 1613736 1621207 1634661 1639764 1815453 1852808 1868184 1882692 2084409 2179548 2186352 2420604 2459646 2510256 2531088 2779212 2802276 2811024 2824038 2906064 3227472 3242414 3269322 3279528 3630906 3705616 3736368 3765384 4168818 4236057 4359096 4841208 4863621 4903983 4919292 5446359 5558424 5604552 5648076 6253227 6484828 6538644 6559056 7261812 7530768 8337636 8472114 8718192 9682416 9727242 9807966 9838584 10892718 11116848 11209104 11296152 12506454 12708171 12969656 13077288 14523624 14590863 16675272 16944228 18759681 19454484 19615932 19677168 21785436 22592304 25012908 25416342 25939312 26154576 29047248 29181726 33350544 33888456 37519362 38124513 38908968 39231864 43570872 43772589 50025816 50832684 56279043 58363452 67776912 75038724 76249026 77817936 78463728 87141744 87545178 100051632 101665368 112558086 116726904 131317767 150077448 152498052 168837129 175090356 203330736 225116172 233453808 262635534 300154896 304996104 337674258 350180712 393953301 450232344 525271068 609992208 675348516 700361424 787906602 900464688 1050542136 1181859903 1350697032 1575813204 2101084272 2363719806 2701394064 3151626408 4727439612 6303252816 9454879224 18909758448
• Sum of all divisors σ(n): 65138305584
• Sum of proper divisors (its aliquot sum) s(n): 46228547136
• 18909758448 is an abundant number, because the sum of its proper divisors (46228547136) is greater than itself. Its abundance is 27318788688

Bases of 18909758448

• Binary: 10001100111000111000000001111110000₂
• Hexadecimal: 0x4671C03F0
• Base-36: 8OQDR00

Squares and roots of 18909758448

• 18909758448 squared (18909758448²) is 357578964561707368704
• 18909758448 cubed (18909758448³) is 6761731845947838532654314811392
• The square root of 18909758448 is 137512.7574009045
• The cube root of 18909758448 is 2664.1703689437

Scales and comparisons

• 18,909,758,448 seconds is equal to 601 years, 14 weeks, 22 hours, 40 minutes, 48 seconds.
• To count from 1 to 18,909,758,448 would take you about one thousand, two hundred two 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 18909758448 cubic inches would be around 222 feet tall.

Recreational maths with 18909758448

• 18909758448 backwards is 84485790981
• 18909758448 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18909758448's digits is 63
• More coming soon!