18485861729920

Names of 18485861729920

• Cardinal: 18485861729920 can be written as Eighteen trillion, four hundred eighty-five billion, eight hundred sixty-one million, seven hundred twenty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.848586172992 × 10¹³

Factors of 18485861729920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 547303

Divisors of 18485861729920

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 31 32 40 52 62 64 65 80 104 124 128 130 131 155 160 208 248 260 262 310 320 403 416 496 520 524 620 640 655 806 832 992 1040 1048 1240 1310 1612 1664 1703 1984 2015 2080 2096 2480 2620 3224 3406 3968 4030 4061 4160 4192 4960 5240 6448 6812 8060 8122 8320 8384 8515 9920 10480 12896 13624 16120 16244 16768 17030 19840 20305 20960 25792 27248 32240 32488 34060 40610 41920 51584 52793 54496 64480 64976 68120 81220 83840 105586 108992 128960 129952 136240 162440 211172 217984 257920 259904 263965 272480 324880 422344 519808 527930 544960 547121 649760 844688 1055860 1089920 1094242 1299520 1689376 2111720 2188484 2599040 2735605 3378752 4223440 4376968 5471210 6757504 7112573 8446880 8753936 10942420 14225146 16893760 16960751 17507872 21884840 28450292 33787520 33921502 35015744 35562865 43769680 56900584 67843004 70031488 71125730 71672851 84803755 87539360 113801168 135686008 142251460 143345702 169607510 175078720 220489763 227602336 271372016 284502920 286691404 339215020 350157440 358364255 440979526 455204672 542744032 569005840 573382808 678430040 716728510 881959052 910409344 931747063 1085488064 1102448815 1138011680 1146765616 1356860080 1433457020 1763918104 1863494126 2170976128 2204897630 2221858381 2276023360 2293531232 2713720160 2866914040 3527836208 3726988252 4409795260 4443716762 4552046720 4587062464 4658735315 5427440320 5733828080 7055672416 7453976504 8819590520 8887433524 9174124928 9317470630 10854880640 11109291905 11467656160 14111344832 14907953008 17639181040 17774867048 18634941260 22218583810 22935312320 28222689664 28884158953 29815906016 35278362080 35549734096 37269882520 44437167620 45870624640 57768317906 59631812032 70556724160 71099468192 74539765040 88874335240 115536635812 119263624064 141113448320 142198936384 144420794765 149079530080 177748670480 231073271624 284397872768 288841589530 298159060160 355497340960 462146543248 577683179060 596318120320 710994681920 924293086496 1155366358120 1421989363840 1848586172992 2310732716240 3697172345984 4621465432480 9242930864960 18485861729920
• Sum of all divisors σ(n): 49502548085760
• Sum of proper divisors (its aliquot sum) s(n): 31016686355840
• 18485861729920 is an abundant number, because the sum of its proper divisors (31016686355840) is greater than itself. Its abundance is 12530824625920

Bases of 18485861729920

• Binary: 100001101000000010011001110001100011010000000₂
• Hexadecimal: 0x10D01338C680
• Base-36: 6JWACS70G

Squares and roots of 18485861729920

• 18485861729920 squared (18485861729920²) is 341727083897720855023206400
• 18485861729920 cubed (18485861729920³) is 6317119622302039021384551783249215488000
• The square root of 18485861729920 is 4299518.7788774687
• The cube root of 18485861729920 is 26441.1232226221

Scales and comparisons

• 18,485,861,729,920 seconds is equal to 587,793 years, 11 weeks, 3 days, 23 hours, 38 minutes, 40 seconds.
• To count from 1 to 18,485,861,729,920 would take you about one million, four hundred sixty-nine thousand, four hundred eighty-three 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 18485861729920 cubic inches would be around 2203.4 feet tall.

Recreational maths with 18485861729920

• 18485861729920 backwards is 02992716858481
• The number of decimal digits it has is: 14
• The sum of 18485861729920's digits is 70
• More coming soon!