21318355968
21,318,355,968 is an even composite number composed of five prime numbers multiplied together.
21318355968 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred seventy-six divisors.
Prime factorization of 21318355968:
210 × 3 × 7 × 13 × 76259
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 13 × 76259)See below for interesting mathematical facts about the number 21318355968 from the Numbermatics database.
Names of 21318355968
- Cardinal: 21318355968 can be written as Twenty-one billion, three hundred eighteen million, three hundred fifty-five thousand, nine hundred sixty-eight.
Scientific notation
- Scientific notation: 2.1318355968 × 1010
Factors of 21318355968
Divisors of 21318355968
- Number of divisors d(n): 176
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Complete list of divisors:
1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 48 52 56 64 78 84 91 96 104 112 128 156 168 182 192 208 224 256 273 312 336 364 384 416 448 512 546 624 672 728 768 832 896 1024 1092 1248 1344 1456 1536 1664 1792 2184 2496 2688 2912 3072 3328 3584 4368 4992 5376 5824 6656 7168 8736 9984 10752 11648 13312 17472 19968 21504 23296 34944 39936 46592 69888 76259 93184 139776 152518 228777 279552 305036 457554 533813 610072 915108 991367 1067626 1220144 1601439 1830216 1982734 2135252 2440288 2974101 3202878 3660432 3965468 4270504 4880576 5948202 6405756 6939569 7320864 7930936 8541008 9761152 11896404 12811512 13879138 14641728 15861872 17082016 19522304 20818707 23792808 25623024 27758276 29283456 31723744 34164032 39044608 41637414 47585616 51246048 55516552 58566912 63447488 68328064 78089216 83274828 95171232 102492096 111033104 117133824 126894976 136656128 166549656 190342464 204984192 222066208 234267648 253789952 273312256 333099312 380684928 409968384 444132416 507579904 546624512 666198624 761369856 819936768 888264832 1015159808 1332397248 1522739712 1639873536 1776529664 2664794496 3045479424 3553059328 5329588992 7106118656 10659177984 21318355968
- Sum of all divisors σ(n): 69934690560
- Sum of proper divisors (its aliquot sum) s(n): 48616334592
- 21318355968 is an abundant number, because the sum of its proper divisors (48616334592) is greater than itself. Its abundance is 27297978624
Bases of 21318355968
- Binary: 100111101101010110001001100000000002
- Hexadecimal: 0x4F6AC4C00
- Base-36: 9SKECQO
Squares and roots of 21318355968
- 21318355968 squared (213183559682) is 454472301178361217024
- 21318355968 cubed (213183559683) is 9688602294116410283403333599232
-
The
square root of 21318355968 is 146008.0681606329 -
The
cube root of 21318355968 is 2772.7959001331
Scales and comparisons
How big is 21318355968?- 21,318,355,968 seconds is equal to 677 years, 44 weeks, 4 days, 5 hours, 32 minutes, 48 seconds.
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To count from 1 to 21,318,355,968 would take you about one thousand, three hundred fifty-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 21318355968 cubic inches would be around 231.1 feet tall.
Recreational maths with 21318355968
- 21318355968 backwards is 86955381312
- The number of decimal digits it has is: 11
- The sum of 21318355968's digits is 51
- More coming soon!
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