381105990
381,105,990 is an even composite number composed of seven prime numbers multiplied together.
381105990 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 381105990:
2 × 32 × 5 × 19 × 43 × 71 × 73
(2 × 3 × 3 × 5 × 19 × 43 × 71 × 73)See below for interesting mathematical facts about the number 381105990 from the Numbermatics database.
Names of 381105990
- Cardinal: 381105990 can be written as Three hundred eighty-one million, one hundred five thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 3.8110599 × 108
Factors of 381105990
Divisors of 381105990
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 5 6 9 10 15 18 19 30 38 43 45 57 71 73 86 90 95 114 129 142 146 171 190 213 215 219 258 285 342 355 365 387 426 430 438 570 639 645 657 710 730 774 817 855 1065 1095 1278 1290 1314 1349 1387 1634 1710 1935 2130 2190 2451 2698 2774 3053 3139 3195 3285 3870 4047 4085 4161 4902 5183 6106 6278 6390 6570 6745 6935 7353 8094 8170 8322 9159 9417 10366 12141 12255 12483 13490 13870 14706 15265 15549 15695 18318 18834 20235 20805 24282 24510 24966 25915 27477 28251 30530 31098 31390 36765 40470 41610 45795 46647 47085 51830 54954 56502 58007 59641 60705 62415 73530 77745 91590 93294 94170 98477 116014 119282 121410 124830 137385 141255 155490 174021 178923 196954 222869 233235 274770 282510 290035 295431 298205 348042 357846 445738 466470 492385 522063 536769 580070 590862 596410 668607 870105 886293 894615 984770 1044126 1073538 1114345 1337214 1477155 1740210 1772586 1789230 2005821 2228690 2610315 2683845 2954310 3343035 4011642 4234511 4431465 5220630 5367690 6686070 8469022 8862930 10029105 12703533 20058210 21172555 25407066 38110599 42345110 63517665 76221198 127035330 190552995 381105990
- Sum of all divisors σ(n): 1097141760
- Sum of proper divisors (its aliquot sum) s(n): 716035770
- 381105990 is an abundant number, because the sum of its proper divisors (716035770) is greater than itself. Its abundance is 334929780
Bases of 381105990
- Binary: 101101011011100110111010001102
- Hexadecimal: 0x16B73746
- Base-36: 6AWF9I
Squares and roots of 381105990
- 381105990 squared (3811059902) is 145241775613880100
- 381105990 cubed (3811059903) is 55352510684685633251799000
-
The
square root of 381105990 is 19521.9361232435 -
The
cube root of 381105990 is 725.0176705959
Scales and comparisons
How big is 381105990?- 381,105,990 seconds is equal to 12 years, 6 weeks, 22 hours, 46 minutes, 30 seconds.
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To count from 1 to 381,105,990 would take you about eighteen 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 381105990 cubic inches would be around 60.4 feet tall.
Recreational maths with 381105990
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