18213967091744725

Names of 18213967091744725

• Cardinal: 18213967091744725 can be written as Eighteen quadrillion, two hundred thirteen trillion, nine hundred sixty-seven billion, ninety-one million, seven hundred forty-four thousand, seven hundred twenty-five.

Scientific notation

• Scientific notation: 1.8213967091744725 × 10¹⁶

Factors of 18213967091744725

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 525

Divisors of 18213967091744725

• Number of divisors d(n): 216
• Complete list of divisors:
  1 5 7 25 35 43 97 175 215 301 373 485 679 1075 1505 1849 1865 2425 2611 3395 4171 7525 9245 9325 9409 12943 13055 16039 16975 20855 29197 36181 46225 47045 64715 65275 65863 79507 80195 104275 112273 139129 145985 179353 180905 235225 253267 323575 329315 397535 400975 404587 556549 561365 689677 695645 729925 896765 904525 973903 1255471 1266335 1555783 1646575 1987675 2022935 2782745 2806825 2832109 3448385 3478225 3509557 4483825 4827739 4869515 5982547 6277355 6331675 7712179 7778915 10114675 10890481 13495513 13913725 14160545 17241925 17397241 17547785 24138695 24347575 24566899 29656111 29912735 31386775 38560895 38894575 41877829 53985253 54452405 66898669 67477565 70802725 86986205 87738925 94468591 120693475 121780687 122834495 148280555 149563675 150910951 192804475 207592777 209389145 257249521 269926265 272262025 334493345 337387825 434931025 468290683 472342955 580307059 608903435 614172475 741402775 748081363 754554755 1037963885 1046945725 1056376657 1286247605 1309064761 1349631325 1672466725 1800746647 2341453415 2361714775 2876642767 2901535295 3044517175 3740406815 3772773775 4062149413 5189819425 5236569541 5281883285 6431238025 6489170893 6545323805 9003733235 9163453327 11061729403 11707267075 14383213835 14507676475 18702034075 20136499369 20310747065 24953203537 26182847705 26409416425 32445854465 32726619025 45018666175 45424196251 45817266635 55308647015 56289784723 71916069175 77432105821 100682496845 101553735325 124766017685 130914238525 162229272325 174672424759 227120981255 229086333175 276543235075 279034348399 281448923615 387160529105 394028493061 503412484225 623830088425 873362123795 1072987752091 1135604906275 1395171741995 1407244618075 1935802645525 1953240438793 1970142465305 2420460743089 4366810618975 5364938760455 6975858709975 7510914264637 9766202193965 9850712326525 12102303715445 16943225201623 26824693802275 37554571323185 48831010969825 60511518577225 84716126008115 104079811952827 187772856615925 423580630040575 520399059764135 728558683669789 2601995298820675 3642793418348945 18213967091744725
• Sum of all divisors σ(n): 26773375359931200
• Sum of proper divisors (its aliquot sum) s(n): 8559408268186475
• 18213967091744725 is a deficient number, because the sum of its proper divisors (8559408268186475) is less than itself. Its deficiency is 9654558823558250

Bases of 18213967091744725

• Binary: 1000000101101011000000110101110011101000011111111010101₂
• Hexadecimal: 0x40B581AE743FD5
• Base-36: 4ZCB8YVQAQD

Squares and roots of 18213967091744725

• 18213967091744725 squared (18213967091744725²) is 331748597219159795565244565325625
• 18213967091744725 cubed (18213967091744725³) is 6042458032482252105159691034959860207919001078125
• The square root of 18213967091744725 is 134959131.1906857415
• The cube root of 18213967091744725 is 263108.4821486455

Scales and comparisons

• 18,213,967,091,744,725 seconds is equal to 579,147,814 years, 6 days, 14 hours, 25 minutes, 25 seconds.
• To count from 1 to 18,213,967,091,744,725 would take you about one billion, seven hundred thirty-seven million, four hundred forty-three thousand, four hundred forty-two 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 18213967091744725 cubic inches would be around 21925.7 feet tall.

Recreational maths with 18213967091744725

• 18213967091744725 backwards is 52744719076931281
• The number of decimal digits it has is: 17
• The sum of 18213967091744725's digits is 76
• More coming soon!