21353918232

Names of 21353918232

• Cardinal: 21353918232 can be written as Twenty-one billion, three hundred fifty-three million, nine hundred eighteen thousand, two hundred thirty-two.

Scientific notation

• Scientific notation: 2.1353918232 × 10¹⁰

Factors of 21353918232

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4173

Divisors of 21353918232

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 12 24 29 31 58 62 87 93 116 124 174 186 232 248 257 348 372 514 696 744 771 899 1028 1542 1798 2056 2697 3084 3596 3851 5394 6168 7192 7453 7702 7967 10788 11553 14906 15404 15934 21576 22359 23106 23901 29812 30808 31868 44718 46212 47802 59624 63736 89436 92424 95604 111679 119381 178872 191208 223358 231043 238762 335037 358143 446716 462086 477524 670074 693129 716286 893432 924172 955048 989707 1340148 1386258 1432572 1848344 1979414 2680296 2772516 2865144 2969121 3462049 3958828 5545032 5938242 6924098 7917656 10386147 11876484 13848196 20772294 23752968 27696392 28701503 30680917 41544588 57403006 61361834 83089176 86104509 92042751 114806012 122723668 172209018 184085502 229612024 245447336 344418036 368171004 688836072 736342008 889746593 1779493186 2669239779 3558986372 5338479558 7117972744 10676959116 21353918232
• Sum of all divisors σ(n): 57243801600
• Sum of proper divisors (its aliquot sum) s(n): 35889883368
• 21353918232 is an abundant number, because the sum of its proper divisors (35889883368) is greater than itself. Its abundance is 14535965136

Bases of 21353918232

• Binary: 10011111000110010101110111100011000₂
• Hexadecimal: 0x4F8CAEF18
• Base-36: 9T5KKRC

Squares and roots of 21353918232

• 21353918232 squared (21353918232²) is 455989823858942005824
• 21353918232 cubed (21353918232³) is 9737169413307930294395763783168
• The square root of 21353918232 is 146129.7992607941
• The cube root of 21353918232 is 2774.3368588619

Scales and comparisons

• 21,353,918,232 seconds is equal to 678 years, 51 weeks, 2 days, 19 hours, 57 minutes, 12 seconds.
• To count from 1 to 21,353,918,232 would take you about one thousand, three hundred fifty-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 21353918232 cubic inches would be around 231.2 feet tall.

Recreational maths with 21353918232

• 21353918232 backwards is 23281935312
• The number of decimal digits it has is: 11
• The sum of 21353918232's digits is 39
• More coming soon!