129955072
129,955,072 is an even composite number composed of four prime numbers multiplied together.
129955072 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 129955072:
28 × 13 × 17 × 2297
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 17 × 2297)See below for interesting mathematical facts about the number 129955072 from the Numbermatics database.
Names of 129955072
- Cardinal: 129955072 can be written as One hundred twenty-nine million, nine hundred fifty-five thousand and seventy-two.
Scientific notation
- Scientific notation: 1.29955072 × 108
Factors of 129955072
Divisors of 129955072
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 8 13 16 17 26 32 34 52 64 68 104 128 136 208 221 256 272 416 442 544 832 884 1088 1664 1768 2176 2297 3328 3536 4352 4594 7072 9188 14144 18376 28288 29861 36752 39049 56576 59722 73504 78098 119444 147008 156196 238888 294016 312392 477776 507637 588032 624784 955552 1015274 1249568 1911104 2030548 2499136 3822208 4061096 4998272 7644416 8122192 9996544 16244384 32488768 64977536 129955072
- Sum of all divisors σ(n): 295918056
- Sum of proper divisors (its aliquot sum) s(n): 165962984
- 129955072 is an abundant number, because the sum of its proper divisors (165962984) is greater than itself. Its abundance is 36007912
Bases of 129955072
- Binary: 1111011111011110101000000002
- Hexadecimal: 0x7BEF500
- Base-36: 25DDZ4
Squares and roots of 129955072
- 129955072 squared (1299550722) is 16888320738525184
- 129955072 cubed (1299550723) is 2194722937534133460533248
-
The
square root of 129955072 is 11399.7838576001 -
The
cube root of 129955072 is 506.5213372043
Scales and comparisons
How big is 129955072?- 129,955,072 seconds is equal to 4 years, 6 weeks, 6 days, 2 hours, 37 minutes, 52 seconds.
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To count from 1 to 129,955,072 would take you about six 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 129955072 cubic inches would be around 42.2 feet tall.
Recreational maths with 129955072
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