21234557988
21,234,557,988 is an even composite number composed of seven prime numbers multiplied together.
21234557988 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 21234557988:
22 × 32 × 7 × 61 × 73 × 127 × 149
(2 × 2 × 3 × 3 × 7 × 61 × 73 × 127 × 149)See below for interesting mathematical facts about the number 21234557988 from the Numbermatics database.
Names of 21234557988
- Cardinal: 21234557988 can be written as Twenty-one billion, two hundred thirty-four million, five hundred fifty-seven thousand, nine hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1234557988 × 1010
Factors of 21234557988
Divisors of 21234557988
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 21 28 36 42 61 63 73 84 122 126 127 146 149 183 219 244 252 254 292 298 366 381 427 438 447 508 511 549 596 657 732 762 854 876 889 894 1022 1043 1098 1143 1281 1314 1341 1524 1533 1708 1778 1788 2044 2086 2196 2286 2562 2628 2667 2682 3066 3129 3556 3843 4172 4453 4572 4599 5124 5334 5364 6132 6258 7686 7747 8001 8906 9089 9198 9271 9387 10668 10877 12516 13359 15372 15494 16002 17812 18178 18396 18542 18774 18923 21754 23241 26718 27267 27813 30988 31171 32004 32631 36356 37084 37548 37846 40077 43508 46482 53436 54229 54534 55626 56769 62342 63623 64897 65262 69723 75692 76139 80154 81801 83439 92964 93513 97893 108458 109068 111252 113538 124684 127246 129794 130524 132461 139446 152278 160308 162687 163602 166878 170307 187026 190869 194691 195786 216916 227076 228417 254492 259588 264922 278892 280539 304556 325374 327204 333756 340614 374052 381738 389382 391572 397383 456834 488061 529844 561078 565531 572607 584073 650748 663497 681228 685251 763476 778764 794766 913668 976122 1122156 1131062 1145214 1154303 1168146 1192149 1326994 1370502 1381379 1589532 1696593 1952244 1990491 2262124 2290428 2308606 2336292 2384298 2653988 2741004 2762758 3393186 3462909 3958717 3980982 4144137 4617212 4644479 4768596 5089779 5525516 5971473 6786372 6925818 7917434 7961964 8080121 8288274 9288958 9669653 10179558 10388727 11876151 11942946 12432411 13851636 13933437 15834868 16160242 16576548 18577916 19339306 20359116 20777454 23752302 23885892 24240363 24864822 27866874 29008959 32320484 35628453 38678612 41554908 41800311 47504604 48480726 49729644 55733748 58017918 71256906 72721089 83600622 84264119 87026877 96961452 116035836 142513812 145442178 167201244 168528238 174053754 252792357 290884356 337056476 348107508 505584714 589848833 758377071 1011169428 1179697666 1516754142 1769546499 2359395332 3033508284 3539092998 5308639497 7078185996 10617278994 21234557988
- Sum of all divisors σ(n): 64129228800
- Sum of proper divisors (its aliquot sum) s(n): 42894670812
- 21234557988 is an abundant number, because the sum of its proper divisors (42894670812) is greater than itself. Its abundance is 21660112824
Bases of 21234557988
- Binary: 100111100011010110110100100001001002
- Hexadecimal: 0x4F1ADA424
- Base-36: 9R6I9T0
Squares and roots of 21234557988
- 21234557988 squared (212345579882) is 450906452945734608144
- 21234557988 cubed (212345579883) is 9574799222239594953892225054272
-
The
square root of 21234557988 is 145720.8220811289 -
The
cube root of 21234557988 is 2769.1580366231
Scales and comparisons
How big is 21234557988?- 21,234,557,988 seconds is equal to 675 years, 10 weeks, 8 hours, 19 minutes, 48 seconds.
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To count from 1 to 21,234,557,988 would take you about one thousand, three hundred fifty 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 21234557988 cubic inches would be around 230.8 feet tall.
Recreational maths with 21234557988
- 21234557988 backwards is 88975543212
- The number of decimal digits it has is: 11
- The sum of 21234557988's digits is 54
- More coming soon!
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