21064436736

Names of 21064436736

• Cardinal: 21064436736 can be written as Twenty-one billion, sixty-four million, four hundred thirty-six thousand, seven hundred thirty-six.

Scientific notation

• Scientific notation: 2.1064436736 × 10¹⁰

Factors of 21064436736

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 20003

Divisors of 21064436736

• Number of divisors d(n): 176
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 256 294 336 343 384 392 448 512 588 672 686 768 784 896 1024 1029 1176 1344 1372 1536 1568 1792 2058 2352 2688 2744 3072 3136 3584 4116 4704 5376 5488 6272 7168 8232 9408 10752 10976 12544 16464 18816 19991 21504 21952 25088 32928 37632 39982 43904 50176 59973 65856 75264 79964 87808 119946 131712 139937 150528 159928 175616 239892 263424 279874 319856 351232 419811 479784 526848 559748 639712 839622 959568 979559 1053696 1119496 1279424 1679244 1919136 1959118 2238992 2558848 2938677 3358488 3838272 3918236 4477984 5117696 5877354 6716976 6856913 7676544 7836472 8955968 10235392 11754708 13433952 13713826 15353088 15672944 17911936 20470784 20570739 23509416 26867904 27427652 30706176 31345888 35823872 41141478 47018832 53735808 54855304 61412352 62691776 71647744 82282956 94037664 107471616 109710608 125383552 143295488 164565912 188075328 214943232 219421216 250767104 329131824 376150656 429886464 438842432 501534208 658263648 752301312 877684864 1003068416 1316527296 1504602624 1755369728 2633054592 3009205248 3510739456 5266109184 7021478912 10532218368 21064436736
• Sum of all divisors σ(n): 65477798400
• Sum of proper divisors (its aliquot sum) s(n): 44413361664
• 21064436736 is an abundant number, because the sum of its proper divisors (44413361664) is greater than itself. Its abundance is 23348924928

Bases of 21064436736

• Binary: 10011100111100010011100110000000000₂
• Hexadecimal: 0x4E789CC00
• Base-36: 9OD7ZEO

Squares and roots of 21064436736

• 21064436736 squared (21064436736²) is 443710495004946333696
• 21064436736 cubed (21064436736³) is 9346511651130936053214537056256
• The square root of 21064436736 is 145135.9250358091
• The cube root of 21064436736 is 2761.7431374575

Scales and comparisons

• 21,064,436,736 seconds is equal to 669 years, 40 weeks, 5 days, 8 hours, 25 minutes, 36 seconds.
• To count from 1 to 21,064,436,736 would take you about one thousand, three hundred thirty-nine 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 21064436736 cubic inches would be around 230.1 feet tall.

Recreational maths with 21064436736

• 21064436736 backwards is 63763446012
• 21064436736 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21064436736's digits is 42
• More coming soon!