381891328
381,891,328 is an even composite number composed of four prime numbers multiplied together.
381891328 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 381891328:
28 × 7 × 133 × 97
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 13 × 13 × 13 × 97)See below for interesting mathematical facts about the number 381891328 from the Numbermatics database.
Names of 381891328
- Cardinal: 381891328 can be written as Three hundred eighty-one million, eight hundred ninety-one thousand, three hundred twenty-eight.
Scientific notation
- Scientific notation: 3.81891328 × 108
Factors of 381891328
Divisors of 381891328
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 97 104 112 128 169 182 194 208 224 256 338 364 388 416 448 676 679 728 776 832 896 1183 1261 1352 1358 1456 1552 1664 1792 2197 2366 2522 2704 2716 2912 3104 3328 4394 4732 5044 5408 5432 5824 6208 8788 8827 9464 10088 10816 10864 11648 12416 15379 16393 17576 17654 18928 20176 21632 21728 23296 24832 30758 32786 35152 35308 37856 40352 43264 43456 61516 65572 70304 70616 75712 80704 86912 114751 123032 131144 140608 141232 151424 161408 173824 213109 229502 246064 262288 281216 282464 302848 322816 426218 459004 492128 524576 562432 564928 852436 918008 984256 1049152 1129856 1491763 1704872 1836016 1968512 2098304 2259712 2983526 3409744 3672032 3937024 4196608 5967052 6819488 7344064 11934104 13638976 14688128 23868208 27277952 29376256 47736416 54555904 95472832 190945664 381891328
- Sum of all divisors σ(n): 953485120
- Sum of proper divisors (its aliquot sum) s(n): 571593792
- 381891328 is an abundant number, because the sum of its proper divisors (571593792) is greater than itself. Its abundance is 189702464
Bases of 381891328
- Binary: 101101100001100110011000000002
- Hexadecimal: 0x16C33300
- Base-36: 6BD98G
Squares and roots of 381891328
- 381891328 squared (3818913282) is 145840986401603584
- 381891328 cubed (3818913283) is 55695407973738334023319552
-
The
square root of 381891328 is 19542.0400163341 -
The
cube root of 381891328 is 725.5153390339
Scales and comparisons
How big is 381891328?- 381,891,328 seconds is equal to 12 years, 7 weeks, 3 days, 55 minutes, 28 seconds.
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To count from 1 to 381,891,328 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 381891328 cubic inches would be around 60.5 feet tall.
Recreational maths with 381891328
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