990121564575

Names of 990121564575

• Cardinal: 990121564575 can be written as Nine hundred ninety billion, one hundred twenty-one million, five hundred sixty-four thousand, five hundred seventy-five.

Scientific notation

• Scientific notation: 9.90121564575 × 10¹¹

Factors of 990121564575

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 739

Divisors of 990121564575

• Number of divisors d(n): 432
• Complete list of divisors:
  1 3 5 9 11 13 15 17 25 33 39 45 51 55 65 75 85 99 117 143 153 165 187 195 221 225 233 255 275 289 325 425 429 457 495 561 585 663 699 715 765 825 867 935 975 1105 1165 1275 1287 1371 1445 1683 1989 2097 2145 2285 2431 2475 2563 2601 2805 2925 3029 3179 3315 3495 3575 3757 3825 3961 4113 4335 4675 5027 5525 5825 5941 6435 6855 7225 7293 7689 7769 8415 9087 9537 9945 10485 10725 11271 11425 11883 12155 12815 13005 14025 15081 15145 15895 16575 17475 17823 18785 19805 20565 21675 21879 23067 23307 25135 27261 28611 29705 32175 33319 33813 34275 35649 36465 38445 38845 41327 42075 43571 45243 45435 47685 49725 51493 52425 53469 56355 59415 60775 64075 65025 65351 67337 69921 75405 75725 79475 85459 89115 93925 99025 99957 100997 102825 106481 109395 115335 116535 123981 125675 130713 132073 136305 143055 148525 154479 166595 169065 178245 182325 192225 194225 196053 202011 206635 217855 226215 227175 238425 256377 257465 267345 281775 297075 299871 302991 319443 326755 336685 349605 371943 377025 392139 396219 427295 445575 463437 499785 504985 532405 546975 566423 576675 582675 588159 606033 619905 653565 660365 681525 715275 740707 769131 772395 832975 845325 875381 891225 908973 958329 980265 1010055 1033175 1089275 1110967 1131075 1171291 1188657 1281885 1287325 1336725 1384253 1452803 1499355 1514955 1597215 1633775 1683425 1699269 1716949 1748025 1810177 1859715 1960695 1981095 2136475 2222121 2317185 2498925 2524925 2626143 2662025 2832115 2940795 3030165 3099525 3267825 3301825 3332901 3513873 3703535 3845655 3861975 4152759 4358409 4376905 4544865 4791645 4901325 5050275 5097807 5150847 5430531 5554835 5856455 5943285 6409425 6666363 6921265 7264015 7496775 7574775 7878429 7986075 8496345 8584745 9050885 9298575 9629191 9803475 9905475 9998703 10541619 11110605 11585925 12458277 13075227 13130715 14160575 14703975 15150825 15226783 15452541 16291593 16664505 17569365 18517675 18886439 19228275 19911947 20763795 21792045 21884525 22724325 23532301 23958225 25489035 25754235 27152655 27774175 28887573 29282275 29716425 30773009 33331815 34606325 36320075 39392145 42481725 42923725 45254425 45680349 48145955 49993515 52708095 55553025 56659317 59735841 62291385 65376135 65653575 70596903 76133915 77262705 81457965 83322525 86662719 87846825 92319027 94432195 99559735 103818975 108960225 117661505 127445175 128771175 135763275 137041047 144437865 153865045 166659075 169977951 179207523 196960725 211790709 228401745 240729775 249967575 258855311 263540475 276957081 283296585 298679205 311456925 326880675 338503099 352984515 380669575 386313525 400049117 407289825 433313595 461595135 472160975 497798675 588307525 685205235 722189325 769325225 776565933 849889755 896037615 1015509297 1058953545 1142008725 1200147351 1294276555 1384785405 1416482925 1493396025 1692515495 1764922575 2000245585 2166567975 2307975675 2329697799 3046527891 3426026175 3600442053 3882829665 4249448775 4400540287 4480188075 5077546485 5294767725 6000736755 6471382775 6923927025 8462577475 10001227925 11648488995 13201620861 15232639455 18002210265 19414148325 22002701435 25387732425 30003683775 39604862583 58242444975 66008104305 76163197275 90011051325 110013507175 198024312915 330040521525 990121564575
• Sum of all divisors σ(n): 2227583738016
• Sum of proper divisors (its aliquot sum) s(n): 1237462173441
• 990121564575 is an abundant number, because the sum of its proper divisors (1237462173441) is greater than itself. Its abundance is 247340608866

Bases of 990121564575

• Binary: 1110011010000111110110000001100110011111₂
• Hexadecimal: 0xE687D8199F
• Base-36: CMUSTCPR

Squares and roots of 990121564575

• 990121564575 squared (990121564575²) is 980340712636445894930625
• 990121564575 cubed (990121564575³) is 970656480212168282656046486082609375
• The square root of 990121564575 is 995048.5237288683
• The cube root of 990121564575 is 9966.9628568285

Scales and comparisons

• 990,121,564,575 seconds is equal to 31,482 years, 41 weeks, 5 days, 7 hours, 56 minutes, 15 seconds.
• To count from 1 to 990,121,564,575 would take you about sixty-two thousand, nine hundred sixty-five 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 990121564575 cubic inches would be around 830.6 feet tall.

Recreational maths with 990121564575

• 990121564575 backwards is 575465121099
• The number of decimal digits it has is: 12
• The sum of 990121564575's digits is 54
• More coming soon!