21521168064
21,521,168,064 is an even composite number composed of five prime numbers multiplied together.
21521168064 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred seventy-eight divisors.
Prime factorization of 21521168064:
26 × 32 × 11 × 192 × 972
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 11 × 19 × 19 × 97 × 97)See below for interesting mathematical facts about the number 21521168064 from the Numbermatics database.
Names of 21521168064
- Cardinal: 21521168064 can be written as Twenty-one billion, five hundred twenty-one million, one hundred sixty-eight thousand and sixty-four.
Scientific notation
- Scientific notation: 2.1521168064 × 1010
Factors of 21521168064
Divisors of 21521168064
- Number of divisors d(n): 378
-
Complete list of divisors:
1 2 3 4 6 8 9 11 12 16 18 19 22 24 32 33 36 38 44 48 57 64 66 72 76 88 96 97 99 114 132 144 152 171 176 192 194 198 209 228 264 288 291 304 342 352 361 388 396 418 456 528 576 582 608 627 684 704 722 776 792 836 873 912 1056 1067 1083 1164 1216 1254 1368 1444 1552 1584 1672 1746 1824 1843 1881 2112 2134 2166 2328 2508 2736 2888 3104 3168 3201 3249 3344 3492 3648 3686 3762 3971 4268 4332 4656 5016 5472 5529 5776 6208 6336 6402 6498 6688 6984 7372 7524 7942 8536 8664 9312 9409 9603 10032 10944 11058 11552 11913 12804 12996 13376 13968 14744 15048 15884 16587 17072 17328 18624 18818 19206 20064 20273 22116 23104 23826 25608 25992 27936 28227 29488 30096 31768 33174 34144 34656 35017 35739 37636 38412 40128 40546 44232 47652 51216 51984 55872 56454 58976 60192 60819 63536 66348 68288 69312 70034 71478 75272 76824 81092 84681 88464 95304 102432 103499 103968 105051 112908 117952 120384 121638 127072 132696 140068 142956 150544 153648 162184 169362 176928 178771 182457 190608 204864 206998 207936 210102 225816 243276 254144 265392 280136 285912 301088 307296 310497 315153 324368 338724 353856 357542 364914 381216 385187 413996 420204 451632 486552 530784 536313 560272 571824 602176 614592 620994 630306 648736 677448 715084 729828 762432 770374 827992 840408 903264 931491 973104 1061568 1072626 1120544 1143648 1155561 1241988 1260612 1297472 1354896 1430168 1459656 1540748 1608939 1655984 1680816 1806528 1862982 1946208 1966481 2145252 2241088 2287296 2311122 2483976 2521224 2709792 2860336 2919312 3081496 3217878 3311968 3361632 3396649 3466683 3725964 3892416 3932962 4290504 4622244 4967952 5042448 5419584 5720672 5838624 5899443 6162992 6435756 6623936 6723264 6793298 6933366 7451928 7865924 8581008 9244488 9935904 10084896 10189947 11441344 11677248 11798886 12325984 12871512 13586596 13866732 14903856 15731848 17162016 17698329 18488976 19871808 20169792 20379894 23597772 24651968 25743024 27173192 27733464 29807712 30569841 31463696 34324032 35396658 36977952 37363139 40759788 47195544 51486048 54346384 55466928 59615424 61139682 62927392 70793316 73955904 74726278 81519576 94391088 102972096 108692768 110933856 112089417 122279364 125854784 141586632 149452556 163039152 188782176 217385536 221867712 224178834 244558728 283173264 298905112 326078304 336268251 377564352 448357668 489117456 566346528 597810224 652156608 672536502 896715336 978234912 1132693056 1195620448 1345073004 1793430672 1956469824 2391240896 2690146008 3586861344 5380292016 7173722688 10760584032 21521168064
- Sum of all divisors σ(n): 71762372604
- Sum of proper divisors (its aliquot sum) s(n): 50241204540
- 21521168064 is an abundant number, because the sum of its proper divisors (50241204540) is greater than itself. Its abundance is 28720036476
Bases of 21521168064
- Binary: 101000000101100001011110110110000002
- Hexadecimal: 0x502C2F6C0
- Base-36: 9VX5BK0
Squares and roots of 21521168064
- 21521168064 squared (215211680642) is 463160674838933508096
- 21521168064 cubed (215211680643) is 9967758723844344158255120646144
-
The
square root of 21521168064 is 146700.9477270001 -
The
cube root of 21521168064 is 2781.5611568525
Scales and comparisons
How big is 21521168064?- 21,521,168,064 seconds is equal to 684 years, 15 weeks, 6 days, 14 hours, 14 minutes, 24 seconds.
-
To count from 1 to 21,521,168,064 would take you about one thousand, three hundred sixty-eight 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 21521168064 cubic inches would be around 231.8 feet tall.
Recreational maths with 21521168064
- 21521168064 backwards is 46086112512
- 21521168064 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21521168064's digits is 36
- More coming soon!
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