642042492
642,042,492 is an even composite number composed of five prime numbers multiplied together.
642042492 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 642042492:
22 × 3 × 73 × 133 × 71
(2 × 2 × 3 × 7 × 7 × 7 × 13 × 13 × 13 × 71)See below for interesting mathematical facts about the number 642042492 from the Numbermatics database.
Names of 642042492
- Cardinal: 642042492 can be written as Six hundred forty-two million, forty-two thousand, four hundred ninety-two.
Scientific notation
- Scientific notation: 6.42042492 × 108
Factors of 642042492
Divisors of 642042492
- Number of divisors d(n): 192
-
Complete list of divisors:
1 2 3 4 6 7 12 13 14 21 26 28 39 42 49 52 71 78 84 91 98 142 147 156 169 182 196 213 273 284 294 338 343 364 426 497 507 546 588 637 676 686 852 923 994 1014 1029 1092 1183 1274 1372 1491 1846 1911 1988 2028 2058 2197 2366 2548 2769 2982 3479 3549 3692 3822 4116 4394 4459 4732 5538 5964 6461 6591 6958 7098 7644 8281 8788 8918 10437 11076 11999 12922 13182 13377 13916 14196 15379 16562 17836 19383 20874 23998 24353 24843 25844 26364 26754 30758 33124 35997 38766 41748 45227 46137 47996 48706 49686 53508 57967 61516 71994 73059 77532 83993 90454 92274 97412 99372 107653 115934 135681 143988 146118 155987 167986 173901 180908 184548 215306 231868 251979 271362 292236 311974 316589 322959 335972 347802 430612 467961 503958 542724 587951 623948 633178 645918 695604 753571 935922 949767 1007916 1091909 1175902 1266356 1291836 1507142 1763853 1871844 1899534 2183818 2260713 2351804 3014284 3275727 3527706 3799068 4115657 4367636 4521426 6551454 7055412 7643363 8231314 9042852 12346971 13102908 15286726 16462628 22930089 24693942 30573452 45860178 49387884 53503541 91720356 107007082 160510623 214014164 321021246 642042492
- Sum of all divisors σ(n): 1919232000
- Sum of proper divisors (its aliquot sum) s(n): 1277189508
- 642042492 is an abundant number, because the sum of its proper divisors (1277189508) is greater than itself. Its abundance is 635147016
Bases of 642042492
- Binary: 1001100100010011001010011111002
- Hexadecimal: 0x2644CA7C
- Base-36: AM975O
Squares and roots of 642042492
- 642042492 squared (6420424922) is 412218561533570064
- 642042492 cubed (6420424923) is 264661832495668665547159488
-
The
square root of 642042492 is 25338.5574175011 -
The
cube root of 642042492 is 862.6896557519
Scales and comparisons
How big is 642042492?- 642,042,492 seconds is equal to 20 years, 21 weeks, 4 days, 1 hour, 8 minutes, 12 seconds.
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To count from 1 to 642,042,492 would take you about thirty 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 642042492 cubic inches would be around 71.9 feet tall.
Recreational maths with 642042492
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