21162798072
21,162,798,072 is an even composite number composed of five prime numbers multiplied together.
21162798072 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21162798072:
23 × 35 × 13 × 89 × 972
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 13 × 89 × 97 × 97)See below for interesting mathematical facts about the number 21162798072 from the Numbermatics database.
Names of 21162798072
- Cardinal: 21162798072 can be written as Twenty-one billion, one hundred sixty-two million, seven hundred ninety-eight thousand and seventy-two.
Scientific notation
- Scientific notation: 2.1162798072 × 1010
Factors of 21162798072
Divisors of 21162798072
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 81 89 97 104 108 117 156 162 178 194 216 234 243 267 291 312 324 351 356 388 468 486 534 582 648 702 712 776 801 873 936 972 1053 1068 1157 1164 1261 1404 1602 1746 1944 2106 2136 2314 2328 2403 2522 2619 2808 3159 3204 3471 3492 3783 4212 4628 4806 5044 5238 6318 6408 6942 6984 7209 7566 7857 8424 8633 9256 9409 9612 10088 10413 10476 11349 12636 13884 14418 15132 15714 17266 18818 19224 20826 20952 21627 22698 23571 25272 25899 27768 28227 28836 30264 31239 31428 34047 34532 37636 41652 43254 45396 47142 51798 56454 57672 62478 62856 68094 69064 75272 77697 83304 84681 86508 90792 93717 94284 102141 103596 112229 112908 122317 124956 136188 155394 169362 173016 187434 188568 204282 207192 224458 225816 233091 244634 249912 254043 272376 281151 306423 310788 336687 338724 366951 374868 408564 448916 466182 489268 508086 562302 612846 621576 673374 677448 699273 733902 749736 762129 817128 837401 897832 932364 978536 1010061 1016172 1100853 1124604 1225692 1346748 1398546 1467804 1524258 1674802 1864728 2020122 2032344 2097819 2201706 2249208 2286387 2451384 2512203 2693496 2797092 2935608 3030183 3048516 3302559 3349604 4040244 4195638 4403412 4572774 5024406 5594184 6060366 6097032 6605118 6699208 7536609 8080488 8391276 8806824 9090549 9145548 9907677 10048812 10886213 12120732 13210236 15073218 16782552 18181098 18291096 19815354 20097624 21772426 22609827 24241464 26420472 27271647 29723031 30146436 32658639 36362196 39630708 43544852 45219654 54543294 59446062 60292872 65317278 67829481 72724392 79261416 87089704 90439308 97975917 109086588 118892124 130634556 135658962 180878616 195951834 203488443 218173176 237784248 261269112 271317924 293927751 391903668 406976886 542635848 587855502 783807336 813953772 881783253 1175711004 1627907544 1763566506 2351422008 2645349759 3527133012 5290699518 7054266024 10581399036 21162798072
- Sum of all divisors σ(n): 65404357200
- Sum of proper divisors (its aliquot sum) s(n): 44241559128
- 21162798072 is an abundant number, because the sum of its proper divisors (44241559128) is greater than itself. Its abundance is 23078761056
Bases of 21162798072
- Binary: 100111011010110011010101011111110002
- Hexadecimal: 0x4ED66ABF8
- Base-36: 9PZS7I0
Squares and roots of 21162798072
- 21162798072 squared (211627980722) is 447864022236246917184
- 21162798072 cubed (211627980723) is 9478055866299411387497498869248
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The
square root of 21162798072 is 145474.3897460993 -
The
cube root of 21162798072 is 2766.0351584315
Scales and comparisons
How big is 21162798072?- 21,162,798,072 seconds is equal to 672 years, 47 weeks, 2 days, 19 hours, 1 minute, 12 seconds.
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To count from 1 to 21,162,798,072 would take you about one thousand, three hundred forty-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 21162798072 cubic inches would be around 230.5 feet tall.
Recreational maths with 21162798072
- 21162798072 backwards is 27089726112
- The number of decimal digits it has is: 11
- The sum of 21162798072's digits is 45
- More coming soon!
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