21018871798480

Names of 21018871798480

• Cardinal: 21018871798480 can be written as Twenty-one trillion, eighteen billion, eight hundred seventy-one million, seven hundred ninety-eight thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.101887179848 × 10¹³

Factors of 21018871798480

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 92439

Divisors of 21018871798480

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 151 170 272 302 340 604 680 755 1123 1208 1360 1510 2246 2416 2567 3020 4492 5134 5615 6040 8984 10268 11230 12080 12835 17968 19091 20536 22460 25670 38182 41072 44920 51340 76364 89840 91141 95455 102680 152728 169573 182282 190910 205360 305456 339146 364564 381820 455705 678292 729128 763640 847865 911410 1356584 1458256 1527280 1549397 1695730 1822820 2713168 2882741 3098794 3391460 3645640 5765482 6197588 6782920 7291280 7746985 11530964 12395176 13565840 13762291 14413705 15493970 23061928 24790352 27524582 28827410 30987940 46123856 55049164 57654820 61975880 68811455 102351343 110098328 115309640 123951760 137622910 204702686 220196656 230619280 233958947 275245820 409405372 467917894 511756715 550491640 818810744 935835788 1023513430 1100983280 1169794735 1637621488 1739972831 1871671576 2047026860 2339589470 3479945662 3743343152 4094053720 4679178940 6959891324 8188107440 8699864155 9358357880 13919782648 15455052793 17399728310 18716715760 27839565296 30910105586 34799456620 61820211172 69598913240 77275263965 123640422344 139197826480 154550527930 247280844688 262735897481 309101055860 525471794962 618202111720 1050943589924 1236404223440 1313679487405 2101887179848 2627358974810 4203774359696 5254717949620 10509435899240 21018871798480
• Sum of all divisors σ(n): 52133142336768
• Sum of proper divisors (its aliquot sum) s(n): 31114270538288
• 21018871798480 is an abundant number, because the sum of its proper divisors (31114270538288) is greater than itself. Its abundance is 10095398739808

Bases of 21018871798480

• Binary: 100110001110111010110011000110001101011010000₂
• Hexadecimal: 0x131DD6631AD0
• Base-36: 7G7XPKSLS

Squares and roots of 21018871798480

• 21018871798480 squared (21018871798480²) is 441792971680937869730310400
• 21018871798480 cubed (21018871798480³) is 9285989833231138270671469309816648192000
• The square root of 21018871798480 is 4584634.3145860609
• The cube root of 21018871798480 is 27597.5037118127

Scales and comparisons

• 21,018,871,798,480 seconds is equal to 668,335 years, 5 weeks, 4 days, 3 hours, 34 minutes, 40 seconds.
• To count from 1 to 21,018,871,798,480 would take you about one million, six hundred seventy thousand, eight hundred thirty-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 21018871798480 cubic inches would be around 2299.8 feet tall.

Recreational maths with 21018871798480

• 21018871798480 backwards is 08489717881012
• The number of decimal digits it has is: 14
• The sum of 21018871798480's digits is 64
• More coming soon!