21372908613

Names of 21372908613

• Cardinal: 21372908613 can be written as Twenty-one billion, three hundred seventy-two million, nine hundred eight thousand, six hundred thirteen.

Scientific notation

• Scientific notation: 2.1372908613 × 10¹⁰

Factors of 21372908613

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 516

Divisors of 21372908613

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 19 21 57 79 127 133 237 281 361 381 399 553 843 889 1083 1501 1659 1967 2413 2527 2667 4503 5339 5901 7239 7581 10033 10507 16017 16891 22199 28519 30099 31521 35687 37373 45847 50673 66597 70231 85557 101441 107061 112119 137541 155393 190627 199633 210693 249809 304323 320929 421781 466179 571881 598899 678053 710087 749427 962787 1265343 1334389 2034159 2130261 2819273 2952467 3621913 4003167 4746371 8013839 8457819 8857401 10865739 12883007 14239113 19734911 24041517 25353391 38649021 53566187 56096873 59204733 76060173 90181049 160698561 168290619 270543147 374963309 1017757553 1124889927 3053272659 7124302871 21372908613
• Sum of all divisors σ(n): 35206594560
• Sum of proper divisors (its aliquot sum) s(n): 13833685947
• 21372908613 is a deficient number, because the sum of its proper divisors (13833685947) is less than itself. Its deficiency is 7539222666

Bases of 21372908613

• Binary: 10011111001111011001011010001000101₂
• Hexadecimal: 0x4F9ECB445
• Base-36: 9TGVLTX

Squares and roots of 21372908613

• 21372908613 squared (21372908613²) is 456801222579649583769
• 21372908613 cubed (21372908613³) is 9763170784501522667458325102397
• The square root of 21372908613 is 146194.7626045475
• The cube root of 21372908613 is 2775.1590358981

Scales and comparisons

• 21,372,908,613 seconds is equal to 679 years, 30 weeks, 5 days, 15 hours, 3 minutes, 33 seconds.
• To count from 1 to 21,372,908,613 would take you about one thousand, three hundred fifty-nine 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 21372908613 cubic inches would be around 231.3 feet tall.

Recreational maths with 21372908613

• 21372908613 backwards is 31680927312
• The number of decimal digits it has is: 11
• The sum of 21372908613's digits is 42
• More coming soon!