129739968
129,739,968 is an even composite number composed of four prime numbers multiplied together.
129739968 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty divisors.
Prime factorization of 129739968:
26 × 34 × 29 × 863
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 29 × 863)See below for interesting mathematical facts about the number 129739968 from the Numbermatics database.
Names of 129739968
- Cardinal: 129739968 can be written as One hundred twenty-nine million, seven hundred thirty-nine thousand, nine hundred sixty-eight.
Scientific notation
- Scientific notation: 1.29739968 × 108
Factors of 129739968
Divisors of 129739968
- Number of divisors d(n): 140
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 29 32 36 48 54 58 64 72 81 87 96 108 116 144 162 174 192 216 232 261 288 324 348 432 464 522 576 648 696 783 863 864 928 1044 1296 1392 1566 1726 1728 1856 2088 2349 2589 2592 2784 3132 3452 4176 4698 5178 5184 5568 6264 6904 7767 8352 9396 10356 12528 13808 15534 16704 18792 20712 23301 25027 25056 27616 31068 37584 41424 46602 50054 50112 55232 62136 69903 75081 75168 82848 93204 100108 124272 139806 150162 150336 165696 186408 200216 225243 248544 279612 300324 372816 400432 450486 497088 559224 600648 675729 745632 800864 900972 1118448 1201296 1351458 1491264 1601728 1801944 2027187 2236896 2402592 2702916 3603888 4054374 4473792 4805184 5405832 7207776 8108748 10811664 14415552 16217496 21623328 32434992 43246656 64869984 129739968
- Sum of all divisors σ(n): 398312640
- Sum of proper divisors (its aliquot sum) s(n): 268572672
- 129739968 is an abundant number, because the sum of its proper divisors (268572672) is greater than itself. Its abundance is 138832704
Bases of 129739968
- Binary: 1111011101110101100110000002
- Hexadecimal: 0x7BBACC0
- Base-36: 258S00
Squares and roots of 129739968
- 129739968 squared (1297399682) is 16832459296641024
- 129739968 cubed (1297399683) is 2183842730507508961247232
-
The
square root of 129739968 is 11390.3453854569 -
The
cube root of 129739968 is 506.2417150909
Scales and comparisons
How big is 129739968?- 129,739,968 seconds is equal to 4 years, 6 weeks, 3 days, 14 hours, 52 minutes, 48 seconds.
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To count from 1 to 129,739,968 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 129739968 cubic inches would be around 42.2 feet tall.
Recreational maths with 129739968
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