21211592164

Names of 21211592164

• Cardinal: 21211592164 can be written as Twenty-one billion, two hundred eleven million, five hundred ninety-two thousand, one hundred sixty-four.

Scientific notation

• Scientific notation: 2.1211592164 × 10¹⁰

Factors of 21211592164

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 213

Divisors of 21211592164

• Number of divisors d(n): 81
• Complete list of divisors:
  1 2 4 7 14 28 49 98 101 103 196 202 206 404 412 707 721 1414 1442 2828 2884 4949 5047 9898 10094 10201 10403 10609 19796 20188 20402 20806 21218 40804 41612 42436 71407 72821 74263 142814 145642 148526 285628 291284 297052 499849 509747 519841 999698 1019494 1039682 1050703 1071509 1999396 2038988 2079364 2101406 2143018 4202812 4286036 7354921 7500563 14709842 15001126 29419684 30002252 51484447 52503941 102968894 105007882 108222409 205937788 210015764 216444818 432889636 757556863 1515113726 3030227452 5302898041 10605796082 21211592164
• Sum of all divisors σ(n): 44040039561
• Sum of proper divisors (its aliquot sum) s(n): 22828447397
• 21211592164 is an abundant number, because the sum of its proper divisors (22828447397) is greater than itself. Its abundance is 1616855233

Bases of 21211592164

• Binary: 10011110000010011110011010111100100₂
• Hexadecimal: 0x4F04F35E4
• Base-36: 9QSU19G

Squares and roots of 21211592164

• 21211592164 squared (21211592164²) is 449931642131866202896
• 21211592164 cubed (21211592164³) is 9543766494579945404045227706944
• 21211592164 is a perfect square number. Its square root is 145642
• The cube root of 21211592164 is 2768.1593667989

Scales and comparisons

• 21,211,592,164 seconds is equal to 674 years, 24 weeks, 12 hours, 56 minutes, 4 seconds.
• To count from 1 to 21,211,592,164 would take you about one thousand, three hundred forty-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 21211592164 cubic inches would be around 230.7 feet tall.

Recreational maths with 21211592164

• 21211592164 backwards is 46129511212
• The number of decimal digits it has is: 11
• The sum of 21211592164's digits is 34
• More coming soon!