81029472
81,029,472 is an even composite number composed of five prime numbers multiplied together.
81029472 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 81029472:
25 × 3 × 61 × 101 × 137
(2 × 2 × 2 × 2 × 2 × 3 × 61 × 101 × 137)See below for interesting mathematical facts about the number 81029472 from the Numbermatics database.
Names of 81029472
- Cardinal: 81029472 can be written as Eighty-one million, twenty-nine thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 8.1029472 × 107
Factors of 81029472
Divisors of 81029472
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 8 12 16 24 32 48 61 96 101 122 137 183 202 244 274 303 366 404 411 488 548 606 732 808 822 976 1096 1212 1464 1616 1644 1952 2192 2424 2928 3232 3288 4384 4848 5856 6161 6576 8357 9696 12322 13152 13837 16714 18483 24644 25071 27674 33428 36966 41511 49288 50142 55348 66856 73932 83022 98576 100284 110696 133712 147864 166044 197152 200568 221392 267424 295728 332088 401136 442784 591456 664176 802272 844057 1328352 1688114 2532171 3376228 5064342 6752456 10128684 13504912 20257368 27009824 40514736 81029472
- Sum of all divisors σ(n): 219923424
- Sum of proper divisors (its aliquot sum) s(n): 138893952
- 81029472 is an abundant number, because the sum of its proper divisors (138893952) is greater than itself. Its abundance is 57864480
Bases of 81029472
- Binary: 1001101010001101001011000002
- Hexadecimal: 0x4D46960
- Base-36: 1C8QQO
Squares and roots of 81029472
- 81029472 squared (810294722) is 6565775332598784
- 81029472 cubed (810294723) is 532021308471103855362048
-
The
square root of 81029472 is 9001.6371844237 -
The
cube root of 81029472 is 432.7273412467
Scales and comparisons
How big is 81029472?- 81,029,472 seconds is equal to 2 years, 29 weeks, 6 days, 20 hours, 11 minutes, 12 seconds.
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To count from 1 to 81,029,472 would take you about three 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 81029472 cubic inches would be around 36.1 feet tall.
Recreational maths with 81029472
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The information we have on file for 81029472 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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