21479121664
21,479,121,664 is an even composite number composed of six prime numbers multiplied together.
21479121664 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21479121664:
28 × 7 × 11 × 13 × 79 × 1061
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 11 × 13 × 79 × 1061)See below for interesting mathematical facts about the number 21479121664 from the Numbermatics database.
Names of 21479121664
- Cardinal: 21479121664 can be written as Twenty-one billion, four hundred seventy-nine million, one hundred twenty-one thousand, six hundred sixty-four.
Scientific notation
- Scientific notation: 2.1479121664 × 1010
Factors of 21479121664
Divisors of 21479121664
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 7 8 11 13 14 16 22 26 28 32 44 52 56 64 77 79 88 91 104 112 128 143 154 158 176 182 208 224 256 286 308 316 352 364 416 448 553 572 616 632 704 728 832 869 896 1001 1027 1061 1106 1144 1232 1264 1408 1456 1664 1738 1792 2002 2054 2122 2212 2288 2464 2528 2816 2912 3328 3476 4004 4108 4244 4424 4576 4928 5056 5824 6083 6952 7189 7427 8008 8216 8488 8848 9152 9856 10112 11297 11648 11671 12166 13793 13904 14378 14854 16016 16432 16976 17696 18304 19712 20224 22594 23296 23342 24332 27586 27808 28756 29708 32032 32864 33952 35392 36608 45188 46684 48664 55172 55616 57512 59416 64064 65728 67904 70784 79079 81697 83819 90376 93368 96551 97328 110344 111232 115024 118832 128128 131456 135808 141568 151723 158158 163394 167638 180752 186736 193102 194656 220688 222464 230048 237664 256256 262912 271616 303446 316316 326788 335276 361504 373472 386204 389312 441376 460096 475328 586733 606892 632632 653576 670552 723008 746944 772408 778624 882752 920192 922009 950656 1062061 1089647 1173466 1213784 1265264 1307152 1341104 1446016 1493888 1544816 1557248 1765504 1840384 1844018 1901312 2124122 2179294 2346932 2427568 2530528 2614304 2682208 2892032 2987776 3089632 3531008 3688036 4248244 4358588 4693864 4855136 5061056 5228608 5364416 6179264 6454063 7376072 7627529 8496488 8717176 9387728 9710272 10122112 10457216 10728832 11986117 12358528 12908126 14752144 15255058 16992976 17434352 18775456 19420544 20244224 20914432 21457664 23972234 24717056 25816252 29504288 30510116 33985952 34868704 37550912 38841088 47944468 51632504 59008576 61020232 67971904 69737408 75101824 83902819 95888936 103265008 118017152 122040464 135943808 139474816 150203648 167805638 191777872 206530016 236034304 244080928 271887616 278949632 335611276 383555744 413060032 488161856 671222552 767111488 826120064 976323712 1342445104 1534222976 1652240128 1952647424 2684890208 3068445952 5369780416 10739560832 21479121664
- Sum of all divisors σ(n): 58349168640
- Sum of proper divisors (its aliquot sum) s(n): 36870046976
- 21479121664 is an abundant number, because the sum of its proper divisors (36870046976) is greater than itself. Its abundance is 15390925312
Bases of 21479121664
- Binary: 101000000000100000101100011000000002
- Hexadecimal: 0x500416300
- Base-36: 9V844CG
Squares and roots of 21479121664
- 21479121664 squared (214791216642) is 461352667456914128896
- 21479121664 cubed (214791216643) is 9909450074317992052557762002944
-
The
square root of 21479121664 is 146557.5711589137 -
The
cube root of 21479121664 is 2779.7485092443
Scales and comparisons
How big is 21479121664?- 21,479,121,664 seconds is equal to 682 years, 50 weeks, 2 days, 22 hours, 41 minutes, 4 seconds.
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To count from 1 to 21,479,121,664 would take you about one thousand, three hundred sixty-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 21479121664 cubic inches would be around 231.6 feet tall.
Recreational maths with 21479121664
- 21479121664 backwards is 46612197412
- The number of decimal digits it has is: 11
- The sum of 21479121664's digits is 43
- More coming soon!
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