21120427008

Names of 21120427008

• Cardinal: 21120427008 can be written as Twenty-one billion, one hundred twenty million, four hundred twenty-seven thousand and eight.

Scientific notation

• Scientific notation: 2.1120427008 × 10¹⁰

Factors of 21120427008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 27699

Divisors of 21120427008

• Number of divisors d(n): 132
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 83 96 128 144 166 192 249 256 288 332 384 498 512 576 664 747 768 996 1024 1152 1328 1494 1536 1992 2304 2656 2988 3072 3984 4608 5312 5976 7968 9216 10624 11952 15936 21248 23904 27611 31872 42496 47808 55222 63744 82833 84992 95616 110444 127488 165666 191232 220888 248499 254976 331332 382464 441776 496998 662664 764928 883552 993996 1325328 1767104 1987992 2291713 2650656 3534208 3975984 4583426 5301312 6875139 7068416 7951968 9166852 10602624 13750278 14136832 15903936 18333704 20625417 21205248 27500556 28273664 31807872 36667408 41250834 42410496 55001112 63615744 73334816 82501668 84820992 110002224 127231488 146669632 165003336 220004448 254462976 293339264 330006672 440008896 586678528 660013344 880017792 1173357056 1320026688 1760035584 2346714112 2640053376 3520071168 5280106752 7040142336 10560213504 21120427008
• Sum of all divisors σ(n): 61721766288
• Sum of proper divisors (its aliquot sum) s(n): 40601339280
• 21120427008 is an abundant number, because the sum of its proper divisors (40601339280) is greater than itself. Its abundance is 19480912272

Bases of 21120427008

• Binary: 10011101010111000000010010000000000₂
• Hexadecimal: 0x4EAE02400
• Base-36: 9PAK1S0

Squares and roots of 21120427008

• 21120427008 squared (21120427008²) is 446072437000255832064
• 21120427008 cubed (21120427008³) is 9421240345944581778434017984512
• The square root of 21120427008 is 145328.6861153021
• The cube root of 21120427008 is 2764.1879207047

Scales and comparisons

• 21,120,427,008 seconds is equal to 671 years, 29 weeks, 2 days, 9 hours, 16 minutes, 48 seconds.
• To count from 1 to 21,120,427,008 would take you about one thousand, three hundred forty-three 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 21120427008 cubic inches would be around 230.3 feet tall.

Recreational maths with 21120427008

• 21120427008 backwards is 80072402112
• The number of decimal digits it has is: 11
• The sum of 21120427008's digits is 27
• More coming soon!