18125681040

Names of 18125681040

• Cardinal: 18125681040 can be written as Eighteen billion, one hundred twenty-five million, six hundred eighty-one thousand and forty.

Scientific notation

• Scientific notation: 1.812568104 × 10¹⁰

Factors of 18125681040

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 1289

Divisors of 18125681040

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 81 90 108 120 135 144 162 180 216 240 243 270 324 360 405 432 486 540 648 720 729 810 972 1080 1215 1279 1296 1458 1620 1944 2160 2187 2430 2558 2916 3240 3645 3837 3888 4374 4860 5116 5832 6395 6480 6561 7290 7674 8748 9720 10232 10935 11511 11664 12790 13122 14580 15348 17496 19185 19440 19683 20464 21870 23022 25580 26244 29160 30696 32805 34533 34992 38370 39366 43740 46044 51160 52488 57555 58320 59049 61392 65610 69066 76740 78732 87480 92088 98415 102320 103599 104976 115110 118098 131220 138132 153480 157464 172665 174960 177147 184176 196830 207198 230220 236196 262440 276264 295245 306960 310797 314928 345330 354294 393660 414396 460440 472392 517995 524880 552528 590490 621594 690660 708588 787320 828792 885735 920880 932391 944784 1035990 1180980 1243188 1381320 1417176 1553985 1574640 1657584 1771470 1864782 2071980 2361960 2486376 2762640 2797173 2834352 3107970 3542940 3729564 4143960 4661955 4723920 4972752 5594346 6215940 7085880 7459128 8287920 8391519 9323910 11188692 12431880 13985865 14171760 14918256 16783038 18647820 22377384 24863760 25174557 27971730 33566076 37295640 41957595 44754768 50349114 55943460 67132152 74591280 75523671 83915190 100698228 111886920 125872785 134264304 151047342 167830380 201396456 223773840 226571013 251745570 302094684 335660760 377618355 402792912 453142026 503491140 604189368 671321520 755236710 906284052 1006982280 1132855065 1208378736 1510473420 1812568104 2013964560 2265710130 3020946840 3625136208 4531420260 6041893680 9062840520 18125681040
• Sum of all divisors σ(n): 63262617600
• Sum of proper divisors (its aliquot sum) s(n): 45136936560
• 18125681040 is an abundant number, because the sum of its proper divisors (45136936560) is greater than itself. Its abundance is 27011255520

Bases of 18125681040

• Binary: 10000111000010111111111000110010000₂
• Hexadecimal: 0x4385FF190
• Base-36: 8BRK900

Squares and roots of 18125681040

• 18125681040 squared (18125681040²) is 328540313163815481600
• 18125681040 cubed (18125681040³) is 5955016925189032688895588864000
• The square root of 18125681040 is 134631.6494736657
• The cube root of 18125681040 is 2626.8268360963

Scales and comparisons

• 18,125,681,040 seconds is equal to 576 years, 17 weeks, 4 days, 23 hours, 24 minutes.
• To count from 1 to 18,125,681,040 would take you about one thousand, one hundred fifty-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 18125681040 cubic inches would be around 218.9 feet tall.

Recreational maths with 18125681040

• 18125681040 backwards is 04018652181
• 18125681040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18125681040's digits is 36
• More coming soon!