21329835520

Names of 21329835520

• Cardinal: 21329835520 can be written as Twenty-one billion, three hundred twenty-nine million, eight hundred thirty-five thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.132983552 × 10¹⁰

Factors of 21329835520

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1105

Divisors of 21329835520

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 256 280 320 448 512 560 640 896 1091 1120 1280 1792 2182 2240 2560 3584 4364 4480 5455 7637 8728 8960 10910 15274 17456 17920 21820 30548 34912 38185 43640 61096 69824 76370 87280 122192 139648 152740 174560 244384 279296 305480 349120 488768 558592 610960 698240 977536 1190281 1221920 1396480 1955072 2380562 2443840 2792960 3910144 4761124 4887680 5951405 8331967 9522248 9775360 11902810 16663934 19044496 19550720 23805620 33327868 38088992 41659835 47611240 66655736 76177984 83319670 95222480 133311472 152355968 166639340 190444960 266622944 304711936 333278680 380889920 533245888 609423872 666557360 761779840 1066491776 1333114720 1523559680 2132983552 2666229440 3047119360 4265967104 5332458880 10664917760 21329835520
• Sum of all divisors σ(n): 58501179792
• Sum of proper divisors (its aliquot sum) s(n): 37171344272
• 21329835520 is an abundant number, because the sum of its proper divisors (37171344272) is greater than itself. Its abundance is 15841508752

Bases of 21329835520

• Binary: 10011110111010110110111011000000000₂
• Hexadecimal: 0x4F75B7600
• Base-36: 9SR8EF4

Squares and roots of 21329835520

• 21329835520 squared (21329835520²) is 454961883310253670400
• 21329835520 cubed (21329835520³) is 9704262138877143919108292608000
• The square root of 21329835520 is 146047.3742317883
• The cube root of 21329835520 is 2773.2935110981

Scales and comparisons

• 21,329,835,520 seconds is equal to 678 years, 11 weeks, 4 days, 2 hours, 18 minutes, 40 seconds.
• To count from 1 to 21,329,835,520 would take you about one thousand, three hundred fifty-six 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 21329835520 cubic inches would be around 231.1 feet tall.

Recreational maths with 21329835520

• 21329835520 backwards is 02553892312
• 21329835520 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21329835520's digits is 40
• More coming soon!