161974645916346400

Names of 161974645916346400

• Cardinal: 161974645916346400 can be written as One hundred sixty-one quadrillion, nine hundred seventy-four trillion, six hundred forty-five billion, nine hundred sixteen million, three hundred forty-six thousand, four hundred.

Scientific notation

• Scientific notation: 1.619746459163464 × 10¹⁷

Factors of 161974645916346400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 977283

Divisors of 161974645916346400

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 61 80 100 122 160 200 244 305 400 488 610 800 976 1093 1220 1525 1952 2186 2440 3050 3121 4372 4880 5465 6100 6242 8744 9760 10930 12200 12484 15605 17488 21860 24400 24968 27325 31210 34976 43720 48800 49936 54650 62420 66673 78025 87440 99872 109300 124840 133346 156050 174880 190381 218600 249680 266692 312100 333365 380762 437200 499360 533384 624200 666730 761524 874400 951905 973001 1066768 1248400 1333460 1523048 1666825 1903810 1946002 2133536 2496800 2666920 3046096 3333650 3411253 3807620 3892004 4759525 4865005 5333840 6092192 6667300 6822506 7615240 7784008 9519050 9730010 10667680 13334600 13645012 15230480 15568016 17056265 19038100 19460020 24325025 26669200 27290024 30460960 31136032 34112530 38076200 38920040 48650050 53338400 54580048 59353061 68225060 76152400 77840080 85281325 97300100 109160096 118706122 136450120 152304800 155680160 170562650 194600200 208086433 237412244 272900240 296765305 341125300 389200400 416172866 474824488 545800480 593530610 682250600 778400800 832345732 949648976 1040432165 1063490093 1187061220 1364501200 1483826525 1664691464 1899297952 2080864330 2126980186 2374122440 2729002400 2967653050 3036736121 3329382928 4161728660 4253960372 4748244880 5202160825 5317450465 5935306100 6073472242 6658765856 8323457320 8507920744 9496489760 10404321650 10634900930 11870612200 12146944484 15183680605 16646914640 17015841488 20808643300 21269801860 23741224400 24293888968 26587252325 30367361210 33293829280 34031682976 41617286600 42539603720 47482448800 48587777936 53174504650 60734722420 64872895673 75918403025 83234573200 85079207440 97175555872 106349009300 121469444840 129745791346 151836806050 166469146400 170158414880 185240903381 212698018600 242938889680 259491582692 303673612100 324364478365 370481806762 425396037200 485877779360 518983165384 607347224200 648728956730 740963613524 850792074400 926204516905 1037966330768 1214694448400 1297457913460 1481927227048 1621822391825 1852409033810 2075932661536 2429388896800 2594915826920 2963854454096 3243644783650 3319152580253 3704818067620 4631022584525 5189831653840 5927708908192 6487289567300 6638305160506 7409636135240 9262045169050 10379663307680 12974579134600 13276610321012 14819272270480 16595762901265 18524090338100 25949158269200 26553220642024 29638544540960 33191525802530 37048180676200 51898316538400 53106441284048 66383051605060 74096361352400 82978814506325 106212882568096 132766103210120 148192722704800 165957629012650 202468307395433 265532206420240 331915258025300 404936614790866 531064412840480 663830516050600 809873229581732 1012341536977165 1327661032101200 1619746459163464 2024683073954330 2655322064202400 3239492918326928 4049366147908660 5061707684885825 6478985836653856 8098732295817320 10123415369771650 16197464591634640 20246830739543300 32394929183269280 40493661479086600 80987322958173200 161974645916346400
• Sum of all divisors σ(n): 402399920706020496
• Sum of proper divisors (its aliquot sum) s(n): 240425274789674096
• 161974645916346400 is an abundant number, because the sum of its proper divisors (240425274789674096) is greater than itself. Its abundance is 78450628873327696

Bases of 161974645916346400

• Binary: 1000111111011100110001010100010000011101101010100000100000₂
• Hexadecimal: 0x23F73151076A820
• Base-36: 18AV7X395ZJ4

Squares and roots of 161974645916346400

• 161974645916346400 squared (161974645916346400²) is 26235785919725791513746724792960000
• 161974645916346400 cubed (161974645916346400³) is 4249532134684651556494556409024756275019641344000000
• The square root of 161974645916346400 is 402460738.3538752095
• The cube root of 161974645916346400 is 545107.7372130839

Scales and comparisons

• 161,974,645,916,346,400 seconds is equal to 5,150,292,719 years, 34 weeks, 3 days, 17 hours, 6 minutes, 40 seconds.
• To count from 1 to 161,974,645,916,346,400 would take you about fifteen billion, four hundred fifty million, eight hundred seventy-eight thousand, one hundred fifty-eight 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 161974645916346400 cubic inches would be around 45425.6 feet tall.

Recreational maths with 161974645916346400

• 161974645916346400 backwards is 004643619546479161
• The number of decimal digits it has is: 18
• The sum of 161974645916346400's digits is 76
• More coming soon!