129720725091564971

Names of 129720725091564971

• Cardinal: 129720725091564971 can be written as One hundred twenty-nine quadrillion, seven hundred twenty trillion, seven hundred twenty-five billion, ninety-one million, five hundred sixty-four thousand, nine hundred seventy-one.

Scientific notation

• Scientific notation: 1.29720725091564971 × 10¹⁷

Factors of 129720725091564971

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 735773

Divisors of 129720725091564971

• Number of divisors d(n): 128
• Complete list of divisors:
  1 7 13 31 73 91 217 307 403 511 949 2149 2263 2801 2821 3991 6643 9517 15841 19607 22411 27937 29419 36413 66619 86831 123721 156877 204473 205933 254891 291343 607817 694741 732541 859907 866047 1128803 1431311 2039401 2658149 4863187 5127787 6019349 6338663 7901621 9031633 9523033 11178791 18607043 22708771 26657117 44370641 53475493 62773211 63221431 66661231 78251537 82402619 158961397 186599819 224890087 295214023 346542521 374328451 439412477 576818333 695181409 816051743 1574230609 1657740283 1945969541 2051847341 2066498161 2425797647 2923571131 4866269863 5712362201 6971592697 11604181981 13621786787 14362931387 16416976351 20464997917 21550623679 25297604033 26674015433 48801148879 63607267571 90630705061 114918834457 149784855893 150854365753 177083228231 186718108031 213420692563 445250872997 508926266881 629917133687 634414935427 826894478423 1048493991251 1493944847941 1947203126609 3562483868167 4409419935809 4643330532683 5788261348961 6616041469453 8188922737931 13630421886263 19527431144297 32503313728781 45983950759151 46312290286171 57322459165517 60363296924879 136692018010079 253856604875861 321887655314057 422543078474153 597791359868963 1425502473533681 1776996234131027 4184539519082741 9978517314735767 18531532155937853 129720725091564971
• Sum of all divisors σ(n): 167668352888881152
• Sum of proper divisors (its aliquot sum) s(n): 37947627797316181
• 129720725091564971 is a deficient number, because the sum of its proper divisors (37947627797316181) is less than itself. Its deficiency is 91773097294248790

Bases of 129720725091564971

• Binary: 111001100110111000100111111101011000101101011110110101011₂
• Hexadecimal: 0x1CCDC4FEB16BDAB
• Base-36: ZHA5QF1NCTN

Squares and roots of 129720725091564971

• 129720725091564971 squared (129720725091564971²) is 16827466518281373853832093914230841
• 129720725091564971 cubed (129720725091564971³) is 2182871158205492054065048217588406430005548443470611
• The square root of 129720725091564971 is 360167634.7085686863
• The cube root of 129720725091564971 is 506216.6854236455

Scales and comparisons

• 129,720,725,091,564,971 seconds is equal to 4,124,717,805 years, 18 weeks, 6 days, 8 hours, 56 minutes, 11 seconds.
• To count from 1 to 129,720,725,091,564,971 would take you about twelve billion, three hundred seventy-four million, one hundred fifty-three thousand, four hundred sixteen 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 129720725091564971 cubic inches would be around 42184.7 feet tall.

Recreational maths with 129720725091564971

• 129720725091564971 backwards is 179465190527027921
• The number of decimal digits it has is: 18
• The sum of 129720725091564971's digits is 77
• More coming soon!