21738471744

Names of 21738471744

• Cardinal: 21738471744 can be written as Twenty-one billion, seven hundred thirty-eight million, four hundred seventy-one thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 2.1738471744 × 10¹⁰

Factors of 21738471744

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 19595

Divisors of 21738471744

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 17 22 24 31 32 33 34 44 48 51 62 64 66 68 88 93 96 102 124 132 136 176 186 187 192 204 248 264 272 341 352 372 374 408 496 527 528 544 561 682 704 744 748 816 992 1023 1054 1056 1088 1122 1364 1488 1496 1581 1632 1984 2046 2108 2112 2244 2728 2976 2992 3162 3264 4092 4216 4488 5456 5797 5952 5984 6324 8184 8432 8976 10912 11594 11968 12648 16368 16864 17391 17952 19531 21824 23188 25296 32736 33728 34782 35904 39062 46376 50592 58593 65472 69564 78124 92752 101184 117186 139128 156248 185504 214841 234372 278256 312496 332027 371008 429682 468744 556512 605461 624992 644523 664054 859364 937488 996081 1113024 1210922 1249984 1289046 1328108 1718728 1816383 1874976 1992162 2421844 2578092 2656216 3437456 3632766 3652297 3749952 3984324 4843688 5156184 5312432 6660071 6874912 7265532 7304594 7968648 9687376 10292837 10312368 10624864 10956891 13320142 13749824 14531064 14609188 15937296 19374752 19980213 20585674 20624736 21249728 21913782 26640284 29062128 29218376 30878511 31874592 38749504 39960426 41171348 41249472 43827564 53280568 58124256 58436752 61757022 63749184 79920852 82342696 87655128 106561136 113221207 116248512 116873504 123514044 159841704 164685392 175310256 213122272 226442414 233747008 247028088 319683408 329370784 339663621 350620512 426244544 452884828 494056176 639366816 658741568 679327242 701241024 905769656 988112352 1278733632 1358654484 1811539312 1976224704 2717308968 3623078624 5434617936 7246157248 10869235872 21738471744
• Sum of all divisors σ(n): 68582633472
• Sum of proper divisors (its aliquot sum) s(n): 46844161728
• 21738471744 is an abundant number, because the sum of its proper divisors (46844161728) is greater than itself. Its abundance is 25105689984

Bases of 21738471744

• Binary: 10100001111101101101100000101000000₂
• Hexadecimal: 0x50FB6C140
• Base-36: 9ZIIW5C

Squares and roots of 21738471744

• 21738471744 squared (21738471744²) is 472561153764686401536
• 21738471744 cubed (21738471744³) is 10272757288425674564811374198784
• The square root of 21738471744 is 147439.7224088543
• The cube root of 21738471744 is 2790.8918216299

Scales and comparisons

• 21,738,471,744 seconds is equal to 691 years, 11 weeks, 1 day, 16 hours, 22 minutes, 24 seconds.
• To count from 1 to 21,738,471,744 would take you about one thousand, three hundred eighty-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 21738471744 cubic inches would be around 232.6 feet tall.

Recreational maths with 21738471744

• 21738471744 backwards is 44717483712
• 21738471744 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21738471744's digits is 48
• More coming soon!