138612987904

Names of 138612987904

• Cardinal: 138612987904 can be written as One hundred thirty-eight billion, six hundred twelve million, nine hundred eighty-seven thousand, nine hundred four.

Scientific notation

• Scientific notation: 1.38612987904 × 10¹¹

Factors of 138612987904

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 2644

Divisors of 138612987904

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 8 16 19 23 32 38 46 61 64 76 92 122 128 152 184 244 256 304 368 437 488 512 608 736 874 976 1024 1159 1216 1403 1472 1748 1952 2048 2318 2432 2539 2806 2944 3496 3904 4636 4864 5078 5612 5888 6992 7808 9272 9728 10156 11224 11776 13984 15616 18544 19456 20312 22448 23552 26657 27968 31232 37088 38912 40624 44896 47104 48241 53314 55936 58397 62464 74176 81248 89792 96482 106628 111872 116794 124928 148352 154879 162496 179584 192964 213256 223744 233588 296704 309758 324992 359168 385928 426512 447488 467176 593408 619516 649984 718336 771856 853024 894976 934352 1109543 1186816 1239032 1299968 1436672 1543712 1706048 1868704 2219086 2373632 2478064 2599936 2873344 2942701 3087424 3412096 3562217 3737408 4438172 4956128 5199872 5885402 6174848 6824192 7124434 7474816 8876344 9912256 11770804 12349696 13648384 14248868 14949632 17752688 19824512 23541608 24699392 27296768 28497736 29899264 35505376 39649024 47083216 49398784 54593536 56995472 59798528 67682123 71010752 79298048 94166432 98797568 113990944 119597056 135364246 142021504 158596096 188332864 227981888 270728492 284043008 317192192 376665728 455963776 541456984 568086016 753331456 911927552 1082913968 1136172032 1506662912 1823855104 2165827936 2272344064 3013325824 3647710208 4331655872 6026651648 7295420416 8663311744 17326623488 34653246976 69306493952 138612987904
• Sum of all divisors σ(n): 309542688000
• Sum of proper divisors (its aliquot sum) s(n): 170929700096
• 138612987904 is an abundant number, because the sum of its proper divisors (170929700096) is greater than itself. Its abundance is 32316712192

Bases of 138612987904

• Binary: 10000001000101111110100101100000000000₂
• Hexadecimal: 0x2045FA5800
• Base-36: 1ROELDZ4

Squares and roots of 138612987904

• 138612987904 squared (138612987904²) is 19213560415674450313216
• 138612987904 cubed (138612987904³) is 2663249017490655793267658419339264
• The square root of 138612987904 is 372307.6522232655
• The cube root of 138612987904 is 5175.2894160557

Scales and comparisons

• 138,612,987,904 seconds is equal to 4,407 years, 24 weeks, 23 hours, 45 minutes, 4 seconds.
• To count from 1 to 138,612,987,904 would take you about eight thousand, eight hundred fourteen 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 138612987904 cubic inches would be around 431.3 feet tall.

Recreational maths with 138612987904

• 138612987904 backwards is 409789216831
• The number of decimal digits it has is: 12
• The sum of 138612987904's digits is 58
• More coming soon!