72661230642

Names of 72661230642

• Cardinal: 72661230642 can be written as Seventy-two billion, six hundred sixty-one million, two hundred thirty thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 7.2661230642 × 10¹⁰

Factors of 72661230642

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8438

Divisors of 72661230642

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 7 11 13 14 21 22 26 33 39 42 49 66 77 78 91 98 143 147 154 182 211 231 273 286 294 422 429 462 539 546 633 637 858 1001 1078 1266 1274 1477 1617 1911 2002 2321 2743 2954 3003 3234 3822 4431 4642 5486 6006 6963 7007 8191 8229 8862 10339 13926 14014 16247 16382 16458 19201 20678 21021 24573 30173 31017 32494 38402 42042 48741 49146 57337 57603 60346 62034 90101 90519 97482 106483 113729 114674 115206 134407 172011 180202 181038 211211 212966 227458 268814 270303 319449 341187 344022 401359 403221 422422 540606 630707 633633 638898 682374 745381 802718 806442 1171313 1204077 1261414 1267266 1478477 1490762 1728301 1892121 2236143 2342626 2408154 2956954 3456602 3513939 3784242 4414949 4435431 4472286 5184903 5217667 7027878 8199191 8829898 8870862 10369806 10435334 12098107 13244847 15653001 16398382 19011311 22467913 24196214 24597573 26489694 31306002 36294321 38022622 44935826 49195146 57033933 57394337 67403739 72588642 84686749 114067866 114788674 133079177 134807478 157275391 169373498 172183011 247147043 254060247 266158354 314550782 344366022 399237531 471826173 494294086 508120494 741441129 798475062 931554239 943652346 1100927737 1482882258 1730029301 1863108478 2201855474 2794662717 3302783211 3460058602 5190087903 5589325434 6605566422 10380175806 12110205107 24220410214 36330615321 72661230642
• Sum of all divisors σ(n): 199568130048
• Sum of proper divisors (its aliquot sum) s(n): 126906899406
• 72661230642 is an abundant number, because the sum of its proper divisors (126906899406) is greater than itself. Its abundance is 54245668764

Bases of 72661230642

• Binary: 1000011101010111100100110010000110010₂
• Hexadecimal: 0x10EAF26432
• Base-36: XDOMCDU

Squares and roots of 72661230642

• 72661230642 squared (72661230642²) is 5279654438409919732164
• 72661230642 cubed (72661230642³) is 383626188859362161399475269769288
• The square root of 72661230642 is 269557.4718719555
• The cube root of 72661230642 is 4172.8641833227

Scales and comparisons

• 72,661,230,642 seconds is equal to 2,310 years, 20 weeks, 6 days, 11 hours, 10 minutes, 42 seconds.
• To count from 1 to 72,661,230,642 would take you about four thousand, six hundred twenty 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 72661230642 cubic inches would be around 347.7 feet tall.

Recreational maths with 72661230642

• 72661230642 backwards is 24603216627
• 72661230642 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72661230642's digits is 39
• More coming soon!