21527431380
21,527,431,380 is an even composite number composed of seven prime numbers multiplied together.
21527431380 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21527431380:
22 × 32 × 5 × 7 × 13 × 29 × 45319
(2 × 2 × 3 × 3 × 5 × 7 × 13 × 29 × 45319)See below for interesting mathematical facts about the number 21527431380 from the Numbermatics database.
Names of 21527431380
- Cardinal: 21527431380 can be written as Twenty-one billion, five hundred twenty-seven million, four hundred thirty-one thousand, three hundred eighty.
Scientific notation
- Scientific notation: 2.152743138 × 1010
Factors of 21527431380
Divisors of 21527431380
- Number of divisors d(n): 288
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 13 14 15 18 20 21 26 28 29 30 35 36 39 42 45 52 58 60 63 65 70 78 84 87 90 91 105 116 117 126 130 140 145 156 174 180 182 195 203 210 234 252 260 261 273 290 315 348 364 377 390 406 420 435 455 468 522 546 580 585 609 630 754 780 812 819 870 910 1015 1044 1092 1131 1170 1218 1260 1305 1365 1508 1638 1740 1820 1827 1885 2030 2262 2340 2436 2610 2639 2730 3045 3276 3393 3654 3770 4060 4095 4524 5220 5278 5460 5655 6090 6786 7308 7540 7917 8190 9135 10556 11310 12180 13195 13572 15834 16380 16965 18270 22620 23751 26390 31668 33930 36540 39585 45319 47502 52780 67860 79170 90638 95004 118755 135957 158340 181276 226595 237510 271914 317233 407871 453190 475020 543828 589147 634466 679785 815742 906380 951699 1178294 1268932 1314251 1359570 1586165 1631484 1767441 1903398 2039355 2356588 2628502 2719140 2855097 2945735 3172330 3534882 3806796 3942753 4078710 4124029 4758495 5257004 5302323 5710194 5891470 6344660 6571255 7069764 7885506 8157420 8248058 8837205 9199757 9516990 10604646 11420388 11782940 11828259 12372087 13142510 14275485 15771012 16496116 17085263 17674410 18399514 19033980 19713765 20620145 21209292 23656518 24744174 26285020 26511615 27599271 28550970 34170526 35348820 36799028 37116261 39427530 41240290 45998785 47313036 49488348 51255789 53023230 55198542 57101940 59141295 61860435 68341052 74232522 78855060 82480580 82797813 85426315 91997570 102511578 106046460 110397084 118282590 119596841 123720870 137996355 148465044 153767367 165595626 170852630 183995140 185581305 205023156 236565180 239193682 247441740 256278945 275992710 307534734 331191252 341705260 358790523 371162610 413989065 478387364 512557890 551985420 597984205 615069468 717581046 742325220 768836835 827978130 1025115780 1076371569 1195968410 1435162092 1537673670 1655956260 1793952615 2152743138 2391936820 3075347340 3587905230 4305486276 5381857845 7175810460 10763715690 21527431380
- Sum of all divisors σ(n): 83142259200
- Sum of proper divisors (its aliquot sum) s(n): 61614827820
- 21527431380 is an abundant number, because the sum of its proper divisors (61614827820) is greater than itself. Its abundance is 40087396440
Bases of 21527431380
- Binary: 101000000110010001010001000110101002
- Hexadecimal: 0x5032288D4
- Base-36: 9W0VKD0
Squares and roots of 21527431380
- 21527431380 squared (215274313802) is 463430301820608704400
- 21527431380 cubed (215274313803) is 9976464021855842953801704072000
-
The
square root of 21527431380 is 146722.2933981063 -
The
cube root of 21527431380 is 2781.8309703779
Scales and comparisons
How big is 21527431380?- 21,527,431,380 seconds is equal to 684 years, 26 weeks, 2 days, 2 hours, 3 minutes.
-
To count from 1 to 21,527,431,380 would take you about one thousand, three hundred sixty-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 21527431380 cubic inches would be around 231.8 feet tall.
Recreational maths with 21527431380
- 21527431380 backwards is 08313472512
- 21527431380 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21527431380's digits is 36
- More coming soon!
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