18900129864

Names of 18900129864

• Cardinal: 18900129864 can be written as Eighteen billion, nine hundred million, one hundred twenty-nine thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 1.8900129864 × 10¹⁰

Factors of 18900129864

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 742

Divisors of 18900129864

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 21 22 24 28 29 33 42 44 49 56 58 66 77 83 84 87 88 98 116 132 147 154 166 168 174 196 203 231 232 249 264 294 308 319 332 348 392 406 462 498 539 581 588 607 609 616 638 664 696 812 913 924 957 996 1078 1162 1176 1214 1218 1276 1421 1617 1624 1743 1821 1826 1848 1914 1992 2156 2233 2324 2407 2428 2436 2552 2739 2842 3234 3486 3642 3652 3828 4067 4249 4263 4312 4466 4648 4814 4856 4872 5478 5684 6391 6468 6677 6699 6972 7221 7284 7304 7656 8134 8498 8526 8932 9628 10956 11368 12201 12747 12782 12936 13354 13398 13944 14442 14568 15631 16268 16849 16996 17052 17603 17864 19173 19256 20031 21912 24402 25494 25564 26477 26708 26796 28884 29743 31262 32536 33698 33992 34104 35206 38346 40062 44737 46739 46893 48804 50381 50547 50988 51128 52809 52954 53416 53592 57768 59486 62524 67396 70412 76692 79431 80124 89229 89474 93478 93786 97608 100762 101094 101976 105618 105908 117943 118972 123221 125048 134211 134792 140217 140824 151143 153384 158862 160248 178458 178948 185339 186956 187572 193633 201524 202188 211236 211816 235886 237944 246442 268422 280434 302286 317724 327173 352667 353829 356916 357896 369663 370678 373912 375144 387266 403048 404376 422472 471772 492884 536844 554191 556017 560868 580899 604572 635448 654346 705334 707658 713832 739326 741356 774532 862547 943544 981519 985768 1058001 1073688 1108382 1112034 1121736 1161798 1209144 1297373 1308692 1355431 1410668 1415316 1461049 1478652 1482712 1549064 1662573 1725094 1963038 2116002 2216764 2224068 2323596 2468669 2587641 2594746 2617384 2710862 2821336 2830632 2922098 2957304 3325146 3450188 3879337 3892119 3926076 4066293 4232004 4383147 4433528 4448136 4647192 4937338 5175282 5189492 5421724 5844196 6650292 6900376 7406007 7758674 7784238 7852152 8132586 8464008 8766294 9488017 9874676 10227343 10350564 10378984 10843448 11638011 11688392 13300584 14812014 15517348 15568476 16071539 16265172 17532588 18976034 19749352 20454686 20701128 23276022 27155359 28464051 29624028 30682029 31034696 31136952 32143078 32530344 35065176 37952068 40909372 46552044 48214617 54310718 56928102 59248056 61364058 64286156 71591401 75904136 81466077 81818744 93104088 96429234 108621436 112500773 113856204 122728116 128572312 143182802 162932154 192858468 214774203 217242872 225001546 227712408 245456232 286365604 325864308 337502319 385716936 429548406 450003092 572731208 651728616 675004638 787505411 859096812 900006184 1350009276 1575010822 1718193624 2362516233 2700018552 3150021644 4725032466 6300043288 9450064932 18900129864
• Sum of all divisors σ(n): 62879846400
• Sum of proper divisors (its aliquot sum) s(n): 43979716536
• 18900129864 is an abundant number, because the sum of its proper divisors (43979716536) is greater than itself. Its abundance is 25079586672

Bases of 18900129864

• Binary: 10001100110100010010001100001001000₂
• Hexadecimal: 0x466891848
• Base-36: 8OKNDJC

Squares and roots of 18900129864

• 18900129864 squared (18900129864²) is 357214908876064658496
• 18900129864 cubed (18900129864³) is 6751408167114548326835210924544
• The square root of 18900129864 is 137477.7431586655
• The cube root of 18900129864 is 2663.7181061009

Scales and comparisons

• 18,900,129,864 seconds is equal to 600 years, 50 weeks, 1 day, 12 hours, 4 minutes, 24 seconds.
• To count from 1 to 18,900,129,864 would take you about one thousand, two hundred 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 18900129864 cubic inches would be around 222 feet tall.

Recreational maths with 18900129864

• 18900129864 backwards is 46892100981
• The number of decimal digits it has is: 11
• The sum of 18900129864's digits is 48
• More coming soon!