129139920
129,139,920 is an even composite number composed of six prime numbers multiplied together.
129139920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 129139920:
24 × 35 × 5 × 7 × 13 × 73
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 7 × 13 × 73)See below for interesting mathematical facts about the number 129139920 from the Numbermatics database.
Names of 129139920
- Cardinal: 129139920 can be written as One hundred twenty-nine million, one hundred thirty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.2913992 × 108
Factors of 129139920
Divisors of 129139920
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 27 28 30 35 36 39 40 42 45 48 52 54 56 60 63 65 70 72 73 78 80 81 84 90 91 104 105 108 112 117 120 126 130 135 140 144 146 156 162 168 180 182 189 195 208 210 216 219 234 240 243 252 260 270 273 280 292 312 315 324 336 351 360 364 365 378 390 405 420 432 438 455 468 486 504 511 520 540 546 560 567 584 585 624 630 648 657 702 720 728 730 756 780 810 819 840 876 910 936 945 949 972 1008 1022 1040 1053 1080 1092 1095 1134 1168 1170 1215 1260 1296 1314 1365 1404 1456 1460 1512 1533 1560 1620 1638 1680 1701 1752 1755 1820 1872 1890 1898 1944 1971 2044 2106 2160 2184 2190 2268 2340 2430 2457 2520 2555 2628 2730 2808 2835 2847 2920 3024 3066 3120 3159 3240 3276 3285 3402 3504 3510 3640 3780 3796 3888 3942 4088 4095 4212 4368 4380 4536 4599 4680 4745 4860 4914 5040 5110 5256 5265 5460 5616 5670 5694 5840 5913 6132 6318 6480 6552 6570 6643 6804 7020 7280 7371 7560 7592 7665 7884 8176 8190 8424 8505 8541 8760 9072 9198 9360 9490 9720 9828 9855 10220 10512 10530 10920 11340 11388 11826 12264 12285 12636 13104 13140 13286 13608 13797 14040 14235 14742 15120 15184 15330 15768 15795 16380 16848 17010 17082 17520 17739 18396 18980 19440 19656 19710 19929 20440 21060 21840 22113 22680 22776 22995 23652 24528 24570 25272 25623 26280 26572 27216 27594 28080 28470 29484 29565 30660 31536 31590 32760 33215 34020 34164 35478 36792 36855 37960 39312 39420 39858 40880 41391 42120 42705 44226 45360 45552 45990 47304 49140 50544 51246 52560 53144 55188 56940 58968 59130 59787 61320 63180 65520 66430 68040 68328 68985 70956 73584 73710 75920 76869 78840 79716 82782 84240 85410 88452 88695 91980 94608 98280 99645 102492 106288 110376 110565 113880 117936 118260 119574 122640 124173 126360 128115 132860 136080 136656 137970 141912 147420 153738 157680 159432 165564 170820 176904 177390 179361 183960 196560 199290 204984 206955 220752 221130 227760 230607 236520 239148 248346 252720 256230 265720 275940 283824 294840 298935 307476 318864 331128 341640 353808 354780 358722 367920 384345 398580 409968 413910 442260 461214 473040 478296 496692 512460 531440 538083 551880 589680 597870 614952 620865 662256 683280 709560 717444 768690 797160 827820 884520 896805 922428 956592 993384 1024920 1076166 1103760 1153035 1195740 1229904 1241730 1419120 1434888 1537380 1594320 1614249 1655640 1769040 1793610 1844856 1986768 2049840 2152332 2306070 2391480 2483460 2690415 2869776 3074760 3228498 3311280 3587220 3689712 4304664 4612140 4782960 4966920 5380830 6149520 6456996 7174440 8071245 8609328 9224280 9933840 10761660 12913992 14348880 16142490 18448560 21523320 25827984 32284980 43046640 64569960 129139920
- Sum of all divisors σ(n): 561130752
- Sum of proper divisors (its aliquot sum) s(n): 431990832
- 129139920 is an abundant number, because the sum of its proper divisors (431990832) is greater than itself. Its abundance is 302850912
Bases of 129139920
- Binary: 1111011001010000100110100002
- Hexadecimal: 0x7B284D0
- Base-36: 24VX00
Squares and roots of 129139920
- 129139920 squared (1291399202) is 16677118937606400
- 129139920 cubed (1291399203) is 2153681805432975487488000
-
The
square root of 129139920 is 11363.9746567827 -
The
cube root of 129139920 is 505.4600519637
Scales and comparisons
How big is 129139920?- 129,139,920 seconds is equal to 4 years, 5 weeks, 3 days, 16 hours, 12 minutes.
-
To count from 1 to 129,139,920 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 129139920 cubic inches would be around 42.1 feet tall.
Recreational maths with 129139920
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