129989640
129,989,640 is an even composite number composed of seven prime numbers multiplied together.
129989640 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 129989640:
23 × 3 × 5 × 11 × 19 × 71 × 73
(2 × 2 × 2 × 3 × 5 × 11 × 19 × 71 × 73)See below for interesting mathematical facts about the number 129989640 from the Numbermatics database.
Names of 129989640
- Cardinal: 129989640 can be written as One hundred twenty-nine million, nine hundred eighty-nine thousand, six hundred forty.
Scientific notation
- Scientific notation: 1.2998964 × 108
Factors of 129989640
Divisors of 129989640
- Number of divisors d(n): 256
-
Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 19 20 22 24 30 33 38 40 44 55 57 60 66 71 73 76 88 95 110 114 120 132 142 146 152 165 190 209 213 219 220 228 264 284 285 292 330 355 365 380 418 426 438 440 456 568 570 584 627 660 710 730 760 781 803 836 852 876 1045 1065 1095 1140 1254 1320 1349 1387 1420 1460 1562 1606 1672 1704 1752 2090 2130 2190 2280 2343 2409 2508 2698 2774 2840 2920 3124 3135 3212 3905 4015 4047 4161 4180 4260 4380 4686 4818 5016 5183 5396 5548 6248 6270 6424 6745 6935 7810 8030 8094 8322 8360 8520 8760 9372 9636 10366 10792 11096 11715 12045 12540 13490 13870 14839 15257 15549 15620 16060 16188 16644 18744 19272 20235 20732 20805 23430 24090 25080 25915 26980 27740 29678 30514 31098 31240 32120 32376 33288 40470 41464 41610 44517 45771 46860 48180 51830 53960 55480 57013 59356 61028 62196 74195 76285 77745 80940 83220 89034 91542 93720 96360 98477 103660 114026 118712 122056 124392 148390 152570 155490 161880 166440 171039 178068 183084 196954 207320 222585 228052 228855 285065 295431 296780 305140 310980 342078 356136 366168 393908 445170 456104 457710 492385 570130 590862 593560 610280 621960 684156 787816 855195 890340 915420 984770 1083247 1140260 1181724 1368312 1477155 1710390 1780680 1830840 1969540 2166494 2280520 2363448 2954310 3249741 3420780 3939080 4332988 5416235 5908620 6499482 6841560 8665976 10832470 11817240 12998964 16248705 21664940 25997928 32497410 43329880 64994820 129989640
- Sum of all divisors σ(n): 460339200
- Sum of proper divisors (its aliquot sum) s(n): 330349560
- 129989640 is an abundant number, because the sum of its proper divisors (330349560) is greater than itself. Its abundance is 200359920
Bases of 129989640
- Binary: 1111011111101111100000010002
- Hexadecimal: 0x7BF7C08
- Base-36: 25E4NC
Squares and roots of 129989640
- 129989640 squared (1299896402) is 16897306507329600
- 129989640 cubed (1299896403) is 2196474789857432065344000
-
The
square root of 129989640 is 11401.2999258859 -
The
cube root of 129989640 is 506.5662447173
Scales and comparisons
How big is 129989640?- 129,989,640 seconds is equal to 4 years, 6 weeks, 6 days, 12 hours, 14 minutes.
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To count from 1 to 129,989,640 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 129989640 cubic inches would be around 42.2 feet tall.
Recreational maths with 129989640
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