21370016808

Names of 21370016808

• Cardinal: 21370016808 can be written as Twenty-one billion, three hundred seventy million, sixteen thousand, eight hundred eight.

Scientific notation

• Scientific notation: 2.1370016808 × 10¹⁰

Factors of 21370016808

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 1199

Divisors of 21370016808

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 49 54 56 63 72 81 84 98 108 126 147 162 168 189 196 216 243 252 294 324 343 378 392 441 486 504 567 588 648 686 729 756 882 972 1029 1134 1176 1187 1323 1372 1458 1512 1701 1764 1944 2058 2187 2268 2374 2646 2744 2916 3087 3402 3528 3561 3969 4116 4374 4536 4748 5103 5292 5832 6174 6561 6804 7122 7938 8232 8309 8748 9261 9496 10206 10584 10683 11907 12348 13122 13608 14244 15309 15876 16618 17496 18522 20412 21366 23814 24696 24927 26244 27783 28488 30618 31752 32049 33236 35721 37044 40824 42732 45927 47628 49854 52488 55566 58163 61236 64098 66472 71442 74088 74781 83349 85464 91854 95256 96147 99708 107163 111132 116326 122472 128196 142884 149562 166698 174489 183708 192294 199416 214326 222264 224343 232652 250047 256392 285768 288441 299124 321489 333396 348978 367416 384588 407141 428652 448686 465304 500094 523467 576882 598248 642978 666792 673029 697956 750141 769176 814282 857304 865323 897372 1000188 1046934 1153764 1221423 1285956 1346058 1395912 1500282 1570401 1628564 1730646 1794744 2000376 2019087 2093868 2250423 2307528 2442846 2571912 2595969 2692116 3000564 3140802 3257128 3461292 3664269 4038174 4187736 4500846 4711203 4885692 5191938 5384232 6001128 6057261 6281604 6922584 7328538 7787907 8076348 9001692 9422406 9771384 10383876 10992807 12114522 12563208 14133609 14657076 15575814 16152696 18003384 18171783 18844812 20767752 21985614 24229044 28267218 29314152 31151628 32978421 36343566 37689624 42400827 43971228 48458088 54515349 56534436 62303256 65956842 72687132 84801654 87942456 98935263 109030698 113068872 127202481 131913684 145374264 169603308 197870526 218061396 254404962 263827368 296805789 339206616 381607443 395741052 436122792 508809924 593611578 763214886 791482104 890417367 1017619848 1187223156 1526429772 1780834734 2374446312 2671252101 3052859544 3561669468 5342504202 7123338936 10685008404 21370016808
• Sum of all divisors σ(n): 70146648000
• Sum of proper divisors (its aliquot sum) s(n): 48776631192
• 21370016808 is an abundant number, because the sum of its proper divisors (48776631192) is greater than itself. Its abundance is 27406614384

Bases of 21370016808

• Binary: 10011111001110000001001010000101000₂
• Hexadecimal: 0x4F9C09428
• Base-36: 9TF5MI0

Squares and roots of 21370016808

• 21370016808 squared (21370016808²) is 456677618374202508864
• 21370016808 cubed (21370016808³) is 9759208380494117248019448986112
• The square root of 21370016808 is 146184.8720216971
• The cube root of 21370016808 is 2775.0338683959

Scales and comparisons

• 21,370,016,808 seconds is equal to 679 years, 26 weeks, 3 hours, 46 minutes, 48 seconds.
• To count from 1 to 21,370,016,808 would take you about one thousand, three hundred fifty-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 21370016808 cubic inches would be around 231.3 feet tall.

Recreational maths with 21370016808

• 21370016808 backwards is 80861007312
• 21370016808 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21370016808's digits is 36
• More coming soon!