21397941075

Names of 21397941075

• Cardinal: 21397941075 can be written as Twenty-one billion, three hundred ninety-seven million, nine hundred forty-one thousand and seventy-five.

Scientific notation

• Scientific notation: 2.1397941075 × 10¹⁰

Factors of 21397941075

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 161

Divisors of 21397941075

• Number of divisors d(n): 162
• Complete list of divisors:
  1 3 5 7 15 19 21 25 35 49 57 75 95 105 127 133 147 175 245 285 361 381 399 475 525 635 665 735 889 931 1083 1225 1425 1805 1905 1995 2413 2527 2667 2793 3175 3325 3675 4445 4655 5415 6223 7239 7581 9025 9525 9975 12065 12635 13335 13965 16129 16891 17689 18669 22225 23275 27075 31115 36195 37905 45847 48387 50673 53067 60325 63175 66675 69825 80645 84455 88445 93345 112903 118237 137541 155575 180975 189525 229235 241935 253365 265335 306451 320929 338709 354711 403225 422275 442225 466725 564515 591185 687705 790321 919353 962787 1146175 1209675 1266825 1326675 1532255 1604645 1693545 1773555 2145157 2246503 2370963 2822575 2955925 3438525 3951605 4596765 4813935 5822569 6435471 6739509 7661275 8023225 8467725 8867775 10725785 11232515 11854815 15016099 17467707 19758025 22983825 24069675 29112845 32177355 33697545 40757983 45048297 53628925 56162575 59274075 75080495 87338535 122273949 145564225 160886775 168487725 203789915 225241485 285305881 375402475 436692675 611369745 855917643 1018949575 1126207425 1426529405 3056848725 4279588215 7132647025 21397941075
• Sum of all divisors σ(n): 43778605356
• Sum of proper divisors (its aliquot sum) s(n): 22380664281
• 21397941075 is an abundant number, because the sum of its proper divisors (22380664281) is greater than itself. Its abundance is 982723206

Bases of 21397941075

• Binary: 10011111011011010101010101101010011₂
• Hexadecimal: 0x4FB6AAB53
• Base-36: 9TVS503

Squares and roots of 21397941075

• 21397941075 squared (21397941075²) is 457871882249172155625
• 21397941075 cubed (21397941075³) is 9797515556267124253594479796875
• The square root of 21397941075 is 146280.3509532295
• The cube root of 21397941075 is 2776.2420574109

Scales and comparisons

• 21,397,941,075 seconds is equal to 680 years, 20 weeks, 1 day, 8 hours, 31 minutes, 15 seconds.
• To count from 1 to 21,397,941,075 would take you about one thousand, three hundred sixty 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 21397941075 cubic inches would be around 231.4 feet tall.

Recreational maths with 21397941075

• 21397941075 backwards is 57014979312
• The number of decimal digits it has is: 11
• The sum of 21397941075's digits is 48
• More coming soon!