21272731788
21,272,731,788 is an even composite number composed of seven prime numbers multiplied together.
21272731788 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 21272731788:
22 × 3 × 7 × 11 × 17 × 61 × 1492
(2 × 2 × 3 × 7 × 11 × 17 × 61 × 149 × 149)See below for interesting mathematical facts about the number 21272731788 from the Numbermatics database.
Names of 21272731788
- Cardinal: 21272731788 can be written as Twenty-one billion, two hundred seventy-two million, seven hundred thirty-one thousand, seven hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1272731788 × 1010
Factors of 21272731788
Divisors of 21272731788
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 7 11 12 14 17 21 22 28 33 34 42 44 51 61 66 68 77 84 102 119 122 132 149 154 183 187 204 231 238 244 298 308 357 366 374 427 447 462 476 561 596 671 714 732 748 854 894 924 1037 1043 1122 1281 1309 1342 1428 1639 1708 1788 2013 2074 2086 2244 2533 2562 2618 2684 3111 3129 3278 3927 4026 4148 4172 4697 4917 5066 5124 5236 6222 6258 6556 7259 7599 7854 8052 9089 9394 9834 10132 11407 11473 12444 12516 14091 14518 15198 15708 17731 18178 18788 19668 21777 22201 22814 22946 27267 27863 28182 29036 30396 34221 34419 35462 36356 43554 44402 45628 45892 53193 54534 55726 56364 63623 66603 68442 68838 70924 79849 83589 87108 88804 99979 106386 109068 111452 127246 133206 136884 137676 154513 155407 159698 167178 190869 195041 199958 212772 239547 244211 254492 266412 299937 309026 310814 319396 334356 377417 381738 390082 399916 463539 466221 479094 488422 585123 599874 618052 621628 699853 732633 754834 763476 780164 927078 932442 958188 976844 1081591 1132251 1170246 1199748 1354261 1399706 1465266 1509668 1699643 1709477 1854156 1864884 2099559 2163182 2264502 2340492 2641919 2708522 2799412 2930532 3244773 3399286 3418954 4062783 4151587 4199118 4326364 4529004 5098929 5128431 5283838 5417044 6489546 6798572 6837908 7925757 8125566 8303174 8398236 9479827 10197858 10256862 10567676 11897501 12454761 12979092 14896871 15851514 16251132 16606348 18959654 20395716 20513724 23022437 23795002 24909522 28439481 29061109 29793742 31703028 35692503 37919308 44690613 46044874 47590004 49819044 56878962 58122218 59587484 69067311 71385006 87183327 89381226 92089748 104278097 113757924 116244436 138134622 142770012 161157059 174366654 178762452 208556194 253246807 276269244 312834291 322314118 348733308 417112388 483471177 506493614 625668582 644628236 759740421 966942354 1012987228 1251337164 1519480842 1772727649 1933884708 3038961684 3545455298 5318182947 7090910596 10636365894 21272731788
- Sum of all divisors σ(n): 67048708608
- Sum of proper divisors (its aliquot sum) s(n): 45775976820
- 21272731788 is an abundant number, because the sum of its proper divisors (45775976820) is greater than itself. Its abundance is 24503245032
Bases of 21272731788
- Binary: 100111100111111010000100000100011002
- Hexadecimal: 0x4F3F4208C
- Base-36: 9RT8GWC
Squares and roots of 21272731788
- 21272731788 squared (212727317882) is 452529117724185676944
- 21272731788 cubed (212727317883) is 9626530547606878866340927495872
-
The
square root of 21272731788 is 145851.7459203009 -
The
cube root of 21272731788 is 2770.8164339561
Scales and comparisons
How big is 21272731788?- 21,272,731,788 seconds is equal to 676 years, 21 weeks, 1 day, 4 hours, 9 minutes, 48 seconds.
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To count from 1 to 21,272,731,788 would take you about one thousand, three hundred fifty-two 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 21272731788 cubic inches would be around 230.9 feet tall.
Recreational maths with 21272731788
- 21272731788 backwards is 88713727212
- The number of decimal digits it has is: 11
- The sum of 21272731788's digits is 48
- More coming soon!
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