21051472104

Names of 21051472104

• Cardinal: 21051472104 can be written as Twenty-one billion, fifty-one million, four hundred seventy-two thousand, one hundred four.

Scientific notation

• Scientific notation: 2.1051472104 × 10¹⁰

Factors of 21051472104

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 394614

Divisors of 21051472104

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 19 24 26 27 36 38 39 52 54 57 72 76 78 104 108 114 117 152 156 171 216 228 234 247 312 342 351 456 468 494 513 684 702 741 936 988 1026 1368 1404 1482 1976 2052 2223 2808 2964 4104 4446 5928 6669 8892 13338 17784 26676 53352 394577 789154 1183731 1578308 2367462 3156616 3551193 4734924 5129501 7102386 7496963 9469848 10259002 10653579 14204772 14993926 15388503 20518004 21307158 22490889 28409544 29987852 30777006 41036008 42614316 44981778 46165509 59975704 61554012 67472667 85228632 89963556 92331018 97460519 123108024 134945334 138496527 179927112 184662036 194921038 202418001 269890668 276993054 292381557 369324072 389842076 404836002 539781336 553986108 584763114 779684152 809672004 877144671 1107972216 1169526228 1619344008 1754289342 2339052456 2631434013 3508578684 5262868026 7017157368 10525736052 21051472104
• Sum of all divisors σ(n): 66289104000
• Sum of proper divisors (its aliquot sum) s(n): 45237631896
• 21051472104 is an abundant number, because the sum of its proper divisors (45237631896) is greater than itself. Its abundance is 24186159792

Bases of 21051472104

• Binary: 10011100110110000111111100011101000₂
• Hexadecimal: 0x4E6C3F8E8
• Base-36: 9O5I3U0

Squares and roots of 21051472104

• 21051472104 squared (21051472104²) is 443164477745490186816
• 21051472104 cubed (21051472104³) is 9329264640742915479562772580864
• The square root of 21051472104 is 145091.2544021865
• The cube root of 21051472104 is 2761.1764266533

Scales and comparisons

• 21,051,472,104 seconds is equal to 669 years, 19 weeks, 2 days, 7 hours, 8 minutes, 24 seconds.
• To count from 1 to 21,051,472,104 would take you about one thousand, three hundred thirty-eight 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 21051472104 cubic inches would be around 230.1 feet tall.

Recreational maths with 21051472104

• 21051472104 backwards is 40127415012
• 21051472104 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21051472104's digits is 27
• More coming soon!