21205421348960

Names of 21205421348960

• Cardinal: 21205421348960 can be written as Twenty-one trillion, two hundred five billion, four hundred twenty-one million, three hundred forty-eight thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.120542134896 × 10¹³

Factors of 21205421348960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 133898

Divisors of 21205421348960

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 361 380 608 722 760 1444 1520 1805 2801 2888 3040 3610 5602 5776 7220 11204 11552 14005 14440 22408 28010 28880 44816 53219 56020 57760 89632 106438 112040 131071 212876 224080 262142 266095 425752 448160 524284 532190 655355 851504 1011161 1048568 1064380 1310710 1703008 2022322 2097136 2128760 2490349 2621420 4044644 4194272 4257520 4980698 5055805 5242840 8089288 8515040 9961396 10111610 10485680 12451745 16178576 19922792 20223220 20971360 24903490 32357152 39845584 40446440 47316631 49806980 79691168 80892880 94633262 99613960 161785760 189266524 199227920 236583155 367129871 378533048 398455840 473166310 734259742 757066096 946332620 1468519484 1514132192 1835649355 1892665240 2937038968 3671298710 3785330480 5874077936 6975467549 7342597420 7570660960 11748155872 13950935098 14685194840 27901870196 29370389680 34877337745 55803740392 58740779360 69754675490 111607480784 132533883431 139509350980 223214961568 265067766862 279018701960 530135533724 558037403920 662669417155 1060271067448 1116074807840 1325338834310 2120542134896 2650677668620 4241084269792 5301355337240 10602710674480 21205421348960
• Sum of all divisors σ(n): 52892589883392
• Sum of proper divisors (its aliquot sum) s(n): 31687168534432
• 21205421348960 is an abundant number, because the sum of its proper divisors (31687168534432) is greater than itself. Its abundance is 10481747185472

Bases of 21205421348960

• Binary: 100110100100101000101100110110101100001100000₂
• Hexadecimal: 0x1349459B5860
• Base-36: 7ILMWD2ZK

Squares and roots of 21205421348960

• 21205421348960 squared (21205421348960²) is 449669894586928546093081600
• 21205421348960 cubed (21205421348960³) is 9535439582658247331876285959995355136000
• The square root of 21205421348960 is 4604934.4565324703
• The cube root of 21205421348960 is 27678.9090579175

Scales and comparisons

• 21,205,421,348,960 seconds is equal to 674,266 years, 41 weeks, 6 days, 11 hours, 9 minutes, 20 seconds.
• To count from 1 to 21,205,421,348,960 would take you about one million, six hundred eighty-five thousand, six hundred sixty-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 21205421348960 cubic inches would be around 2306.6 feet tall.

Recreational maths with 21205421348960

• 21205421348960 backwards is 06984312450212
• The number of decimal digits it has is: 14
• The sum of 21205421348960's digits is 47
• More coming soon!