21629136420

Names of 21629136420

• Cardinal: 21629136420 can be written as Twenty-one billion, six hundred twenty-nine million, one hundred thirty-six thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.162913642 × 10¹⁰

Factors of 21629136420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2649

Divisors of 21629136420

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 73 90 146 180 219 292 365 438 657 730 876 1095 1277 1289 1314 1460 2190 2554 2578 2628 3285 3831 3867 4380 5108 5156 6385 6445 6570 7662 7734 11493 11601 12770 12890 13140 15324 15468 19155 19335 22986 23202 25540 25780 38310 38670 45972 46404 57465 58005 76620 77340 93221 94097 114930 116010 186442 188194 229860 232020 279663 282291 372884 376388 466105 470485 559326 564582 838989 846873 932210 940970 1118652 1129164 1398315 1411455 1646053 1677978 1693746 1864420 1881940 2796630 2822910 3292106 3355956 3387492 4194945 4234365 4938159 5593260 5645820 6584212 8230265 8389890 8468730 9876318 14814477 16460530 16779780 16937460 19752636 24690795 29628954 32921060 49381590 59257908 74072385 98763180 120161869 148144770 240323738 296289540 360485607 480647476 600809345 720971214 1081456821 1201618690 1441942428 1802428035 2162913642 2403237380 3604856070 4325827284 5407284105 7209712140 10814568210 21629136420
• Sum of all divisors σ(n): 66610842480
• Sum of proper divisors (its aliquot sum) s(n): 44981706060
• 21629136420 is an abundant number, because the sum of its proper divisors (44981706060) is greater than itself. Its abundance is 23352569640

Bases of 21629136420

• Binary: 10100001001001100100110111000100100₂
• Hexadecimal: 0x509326E24
• Base-36: 9XPFGH0

Squares and roots of 21629136420

• 21629136420 squared (21629136420²) is 467819542274970416400
• 21629136420 cubed (21629136420³) is 10118532699807292287779805288000
• The square root of 21629136420 is 147068.4752759747
• The cube root of 21629136420 is 2786.2049531195

Scales and comparisons

• 21,629,136,420 seconds is equal to 687 years, 38 weeks, 3 days, 5 hours, 27 minutes.
• To count from 1 to 21,629,136,420 would take you about one thousand, three hundred seventy-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 21629136420 cubic inches would be around 232.2 feet tall.

Recreational maths with 21629136420

• 21629136420 backwards is 02463192612
• 21629136420 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21629136420's digits is 36
• More coming soon!