21007493532

Names of 21007493532

• Cardinal: 21007493532 can be written as Twenty-one billion, seven million, four hundred ninety-three thousand, five hundred thirty-two.

Scientific notation

• Scientific notation: 2.1007493532 × 10¹⁰

Factors of 21007493532

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 101

Divisors of 21007493532

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 9 12 18 23 27 36 46 54 69 73 81 92 108 138 146 162 207 219 276 292 324 414 438 529 621 657 828 876 1058 1242 1314 1587 1679 1863 1971 2116 2484 2628 3174 3358 3726 3942 4761 5037 5329 5913 6348 6716 7452 7884 9522 10074 10658 11826 12167 14283 15111 15987 19044 20148 21316 23652 24334 28566 30222 31974 36501 38617 42849 45333 47961 48668 57132 60444 63948 73002 77234 85698 90666 95922 109503 115851 122567 135999 143883 146004 154468 171396 181332 191844 219006 231702 245134 271998 287766 328509 347553 367701 431649 438012 463404 490268 543996 575532 657018 695106 735402 863298 888191 985527 1042659 1103103 1314036 1390212 1470804 1726596 1776382 1971054 2085318 2206206 2664573 2819041 3127977 3309309 3552764 3942108 4170636 4412412 5329146 5638082 6255954 6618618 7993719 8457123 9927927 10658292 11276164 12511908 13237236 15987438 16914246 19855854 23981157 25371369 31974876 33828492 39711708 47962314 50742738 64837943 71943471 76114107 95924628 101485476 129675886 143886942 152228214 194513829 228342321 259351772 287773884 304456428 389027658 456684642 583541487 778055316 913369284 1167082974 1750624461 2334165948 3501248922 5251873383 7002497844 10503746766 21007493532
• Sum of all divisors σ(n): 58211057520
• Sum of proper divisors (its aliquot sum) s(n): 37203563988
• 21007493532 is an abundant number, because the sum of its proper divisors (37203563988) is greater than itself. Its abundance is 16196070456

Bases of 21007493532

• Binary: 10011100100001001001110100110011100₂
• Hexadecimal: 0x4E424E99C
• Base-36: 9NFBHR0

Squares and roots of 21007493532

• 21007493532 squared (21007493532²) is 441314784497021835024
• 21007493532 cubed (21007493532³) is 9270917480897160072529451064768
• The square root of 21007493532 is 144939.6202975571
• The cube root of 21007493532 is 2759.2522974607

Scales and comparisons

• 21,007,493,532 seconds is equal to 667 years, 50 weeks, 4 days, 6 hours, 52 minutes, 12 seconds.
• To count from 1 to 21,007,493,532 would take you about one thousand, three hundred thirty-five 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 21007493532 cubic inches would be around 229.9 feet tall.

Recreational maths with 21007493532

• 21007493532 backwards is 23539470012
• 21007493532 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21007493532's digits is 36
• More coming soon!