21731644080

Names of 21731644080

• Cardinal: 21731644080 can be written as Twenty-one billion, seven hundred thirty-one million, six hundred forty-four thousand and eighty.

Scientific notation

• Scientific notation: 2.173164408 × 10¹⁰

Factors of 21731644080

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 43290

Divisors of 21731644080

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 709 720 1418 2127 2836 3545 4254 5672 6381 7090 8508 10635 11344 12762 14180 17016 21270 25524 28360 31905 34032 42540 42571 51048 56720 63810 85080 85142 102096 127620 127713 170160 170284 212855 255240 255426 340568 383139 425710 510480 510852 638565 681136 766278 851420 1021704 1277130 1532556 1702840 1915695 2043408 2554260 3065112 3405680 3831390 5108520 6130224 7662780 10217040 15325560 30182839 30651120 60365678 90548517 120731356 150914195 181097034 241462712 271645551 301828390 362194068 452742585 482925424 543291102 603656780 724388136 905485170 1086582204 1207313560 1358227755 1448776272 1810970340 2173164408 2414627120 2716455510 3621940680 4346328816 5432911020 7243881360 10865822040 21731644080
• Sum of all divisors σ(n): 73086758160
• Sum of proper divisors (its aliquot sum) s(n): 51355114080
• 21731644080 is an abundant number, because the sum of its proper divisors (51355114080) is greater than itself. Its abundance is 29623470000

Bases of 21731644080

• Binary: 10100001111010011101001001010110000₂
• Hexadecimal: 0x50F4E92B0
• Base-36: 9ZEGJW0

Squares and roots of 21731644080

• 21731644080 squared (21731644080²) is 472264354419799046400
• 21731644080 cubed (21731644080³) is 10263080861922047781488205312000
• The square root of 21731644080 is 147416.5665045825
• The cube root of 21731644080 is 2790.5996013493

Scales and comparisons

• 21,731,644,080 seconds is equal to 690 years, 51 weeks, 6 days, 15 hours, 48 minutes.
• To count from 1 to 21,731,644,080 would take you about one thousand, three hundred eighty-one 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 21731644080 cubic inches would be around 232.5 feet tall.

Recreational maths with 21731644080

• 21731644080 backwards is 08044613712
• 21731644080 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21731644080's digits is 36
• More coming soon!