21423929040

Names of 21423929040

• Cardinal: 21423929040 can be written as Twenty-one billion, four hundred twenty-three million, nine hundred twenty-nine thousand and forty.

Scientific notation

• Scientific notation: 2.142392904 × 10¹⁰

Factors of 21423929040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 24077

Divisors of 21423929040

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 34 36 40 45 48 51 60 68 72 73 80 85 90 102 120 136 144 146 153 170 180 204 219 240 255 272 292 306 340 360 365 408 438 510 584 612 657 680 720 730 765 816 876 1020 1095 1168 1224 1241 1314 1360 1460 1530 1752 2040 2190 2448 2482 2628 2920 3060 3285 3504 3723 4080 4380 4964 5256 5840 6120 6205 6570 7446 8760 9928 10512 11169 12240 12410 13140 14892 17520 18615 19856 22338 23977 24820 26280 29784 37230 44676 47954 49640 52560 55845 59568 71931 74460 89352 95908 99280 111690 119885 143862 148920 178704 191816 215793 223380 239770 287724 297840 359655 383632 407609 431586 446760 479540 575448 719310 815218 863172 893520 959080 1078965 1150896 1222827 1438620 1630436 1726344 1750321 1918160 2038045 2157930 2445654 2877240 3260872 3452688 3500642 3668481 4076090 4315860 4891308 5250963 5754480 6114135 6521744 7001284 7336962 8152180 8631720 8751605 9782616 10501926 12228270 14002568 14673924 15752889 16304360 17263440 17503210 18342405 19565232 21003852 24456540 26254815 28005136 29347848 29755457 31505778 32608720 35006420 36684810 42007704 48913080 52509630 58695696 59510914 63011556 70012840 73369620 78764445 84015408 89266371 97826160 105019260 119021828 126023112 140025680 146739240 148777285 157528890 178532742 210038520 238043656 252046224 267799113 293478480 297554570 315057780 357065484 420077040 446331855 476087312 535598226 595109140 630115560 714130968 892663710 1071196452 1190218280 1260231120 1338995565 1428261936 1785327420 2142392904 2380436560 2677991130 3570654840 4284785808 5355982260 7141309680 10711964520 21423929040
• Sum of all divisors σ(n): 77227766928
• Sum of proper divisors (its aliquot sum) s(n): 55803837888
• 21423929040 is an abundant number, because the sum of its proper divisors (55803837888) is greater than itself. Its abundance is 34379908848

Bases of 21423929040

• Binary: 10011111100111101110011011011010000₂
• Hexadecimal: 0x4FCF736D0
• Base-36: 9UB95G0

Squares and roots of 21423929040

• 21423929040 squared (21423929040²) is 458984735510955321600
• 21423929040 cubed (21423929040³) is 9833256404029874952568779264000
• The square root of 21423929040 is 146369.1533076555
• The cube root of 21423929040 is 2777.3655252001

Scales and comparisons

• 21,423,929,040 seconds is equal to 681 years, 11 weeks, 1 day, 3 hours, 24 minutes.
• To count from 1 to 21,423,929,040 would take you about one thousand, three hundred sixty-two 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 21423929040 cubic inches would be around 231.4 feet tall.

Recreational maths with 21423929040

• 21423929040 backwards is 04092932412
• 21423929040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21423929040's digits is 36
• More coming soon!