21572452720

Names of 21572452720

• Cardinal: 21572452720 can be written as Twenty-one billion, five hundred seventy-two million, four hundred fifty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.157245272 × 10¹⁰

Factors of 21572452720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 102237

Divisors of 21572452720

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 29 35 40 52 56 58 65 70 80 91 104 112 116 130 140 145 182 203 208 232 260 280 290 364 377 406 455 464 520 560 580 728 754 812 910 1015 1040 1160 1456 1508 1624 1820 1885 2030 2320 2639 3016 3248 3640 3770 4060 5278 6032 7280 7540 8120 10556 13195 15080 16240 21112 26390 30160 42224 52780 102181 105560 204362 211120 408724 510905 715267 817448 1021810 1328353 1430534 1634896 2043620 2656706 2861068 2963249 3576335 4087240 5313412 5722136 5926498 6641765 7152670 8174480 9298471 10626824 11444272 11852996 13283530 14305340 14816245 18596942 20742743 21253648 23705992 26567060 28610680 29632490 37193884 38522237 41485486 46492355 47411984 53134120 57221360 59264980 74387768 77044474 82970972 92984710 103713715 106268240 118529960 148775536 154088948 165941944 185969420 192611185 207427430 237059920 269655659 308177896 331883888 371938840 385222370 414854860 539311318 616355792 743877680 770444740 829709720 1078622636 1348278295 1540889480 1659419440 2157245272 2696556590 3081778960 4314490544 5393113180 10786226360 21572452720
• Sum of all divisors σ(n): 63859662720
• Sum of proper divisors (its aliquot sum) s(n): 42287210000
• 21572452720 is an abundant number, because the sum of its proper divisors (42287210000) is greater than itself. Its abundance is 20714757280

Bases of 21572452720

• Binary: 10100000101110100011000000101110000₂
• Hexadecimal: 0x505D18170
• Base-36: 9WROJ1S

Squares and roots of 21572452720

• 21572452720 squared (21572452720²) is 465370716356635398400
• 21572452720 cubed (21572452720³) is 10039187775876047790262363648000
• The square root of 21572452720 is 146875.6369177679
• The cube root of 21572452720 is 2783.7688784825

Scales and comparisons

• 21,572,452,720 seconds is equal to 685 years, 48 weeks, 5 days, 3 hours, 58 minutes, 40 seconds.
• To count from 1 to 21,572,452,720 would take you about one thousand, three hundred seventy-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 21572452720 cubic inches would be around 232 feet tall.

Recreational maths with 21572452720

• 21572452720 backwards is 02725427512
• The number of decimal digits it has is: 11
• The sum of 21572452720's digits is 37
• More coming soon!