642409493362011864

Names of 642409493362011864

• Cardinal: 642409493362011864 can be written as Six hundred forty-two quadrillion, four hundred nine trillion, four hundred ninety-three billion, three hundred sixty-two million, eleven thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 6.42409493362011864 × 10¹⁷

Factors of 642409493362011864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4675

Divisors of 642409493362011864

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 31 36 54 62 72 93 108 124 186 216 248 279 372 558 744 837 961 1116 1674 1922 2232 2883 3348 3844 4639 5766 6696 7688 8649 9278 11532 13917 17298 18556 23064 25947 27834 29791 34596 37112 41751 51894 55668 59582 69192 83502 89373 103788 111336 119164 125253 143809 167004 178746 207576 238328 250506 268119 287618 334008 357492 431427 501012 536238 575236 714984 804357 862854 1002024 1072476 1150472 1294281 1608714 1725708 2144952 2588562 3217428 3451416 3882843 4458079 5177124 6434856 7765686 8916158 10354248 13374237 15531372 17832316 21520321 26748474 31062744 35664632 40122711 43040642 53496948 64560963 80245422 86081284 106993896 120368133 129121926 138200449 160490844 172162568 193682889 240736266 258243852 276400898 320981688 387365778 414601347 481472532 516487704 552801796 581048667 667129951 774731556 829202694 962945064 1105603592 1162097334 1243804041 1334259902 1549463112 1658405388 2001389853 2324194668 2487608082 2668519804 3316810776 3731412123 4002779706 4648389336 4975216164 5337039608 6004169559 7462824246 8005559412 9950432328 12008339118 14925648492 16011118824 18012508677 20681028481 24016678236 29851296984 36025017354 41362056962 48033356472 62043085443 72050034708 82724113924 124086170886 144100069416 165448227848 186129256329 248172341772 372258512658 496344683544 558387768987 641111882911 744517025316 1116775537974 1282223765822 1489034050632 1923335648733 2233551075948 2564447531644 3846671297466 4467102151896 5128895063288 5770006946199 7693342594932 11540013892398 15386685189864 17310020838597 23080027784796 34620041677194 46160055569592 69240083354388 138480166708776
• Sum of all divisors σ(n): 642668587834957488
• Sum of proper divisors (its aliquot sum) s(n): 259094472945624
• 642409493362011864 is a deficient number, because the sum of its proper divisors (259094472945624) is less than itself. Its deficiency is 642150398889066240

Bases of 642409493362011864

• Binary: 100011101010010011000000011111010100001011100110111011011000₂
• Hexadecimal: 0x8EA4C07D42E6ED8
• Base-36: 4VPF5R365C60

Squares and roots of 642409493362011864

• 642409493362011864 squared (642409493362011864²) is 412689957161636765155502493676754496
• 642409493362011864 cubed (642409493362011864³) is 265115946295797453999870697767993269253400636567340544
• The square root of 642409493362011864 is 801504518.6160910621
• 642409493362011864 is a perfect cube number. Its cube root is 862854

Scales and comparisons

• 642,409,493,362,011,864 seconds is equal to 20,426,634,785 years, 45 weeks, 5 days, 7 hours, 44 minutes, 24 seconds.
• To count from 1 to 642,409,493,362,011,864 would take you about sixty-one billion, two hundred seventy-nine million, nine hundred four thousand, three hundred fifty-seven 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 642409493362011864 cubic inches would be around 71904.5 feet tall.

Recreational maths with 642409493362011864

• 642409493362011864 backwards is 468110263394904246
• 642409493362011864 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 642409493362011864's digits is 72
• More coming soon!