21347629930

Names of 21347629930

• Cardinal: 21347629930 can be written as Twenty-one billion, three hundred forty-seven million, six hundred twenty-nine thousand, nine hundred thirty.

Scientific notation

• Scientific notation: 2.134762993 × 10¹⁰

Factors of 21347629930

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8300

Divisors of 21347629930

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 10 11 19 22 29 38 43 55 58 86 95 110 145 190 209 215 290 319 418 430 473 551 638 817 946 1045 1102 1247 1595 1634 2090 2365 2494 2755 3190 4085 4730 5510 6061 6235 8170 8191 8987 12122 12470 13717 16382 17974 23693 27434 30305 40955 44935 47386 60610 68585 81910 89870 90101 118465 137170 155629 180202 236930 237539 260623 311258 352213 450505 475078 521246 704426 778145 901010 1187695 1303115 1556290 1711919 1761065 2375390 2606230 2612929 3423838 3522130 3874343 4513241 5225858 6692047 7748686 8559595 9026482 10214177 13064645 13384094 17119190 19371715 20428354 22566205 26129290 33460235 38743430 45132410 49645651 51070885 66920470 73612517 99291302 102141770 112355947 147225034 194069363 224711894 248228255 368062585 388138726 496456510 561779735 736125170 970346815 1123559470 1940693630 2134762993 4269525986 10673814965 21347629930
• Sum of all divisors σ(n): 46714060800
• Sum of proper divisors (its aliquot sum) s(n): 25366430870
• 21347629930 is an abundant number, because the sum of its proper divisors (25366430870) is greater than itself. Its abundance is 4018800940

Bases of 21347629930

• Binary: 10011111000011010101111101101101010₂
• Hexadecimal: 0x4F86AFB6A
• Base-36: 9T1TSOA

Squares and roots of 21347629930

• 21347629930 squared (21347629930²) is 455721303628231804900
• 21347629930 cubed (21347629930³) is 9728569741072658871261160657000
• The square root of 21347629930 is 146108.2815243543
• The cube root of 21347629930 is 2774.0645032129

Scales and comparisons

• 21,347,629,930 seconds is equal to 678 years, 41 weeks, 1 hour, 12 minutes, 10 seconds.
• To count from 1 to 21,347,629,930 would take you about one thousand, three hundred fifty-seven 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 21347629930 cubic inches would be around 231.2 feet tall.

Recreational maths with 21347629930

• 21347629930 backwards is 03992674312
• The number of decimal digits it has is: 11
• The sum of 21347629930's digits is 46
• More coming soon!