129542490
129,542,490 is an even composite number composed of seven prime numbers multiplied together.
129542490 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 129542490:
2 × 34 × 5 × 7 × 11 × 31 × 67
(2 × 3 × 3 × 3 × 3 × 5 × 7 × 11 × 31 × 67)See below for interesting mathematical facts about the number 129542490 from the Numbermatics database.
Names of 129542490
- Cardinal: 129542490 can be written as One hundred twenty-nine million, five hundred forty-two thousand, four hundred ninety.
Scientific notation
- Scientific notation: 1.2954249 × 108
Factors of 129542490
Divisors of 129542490
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 5 6 7 9 10 11 14 15 18 21 22 27 30 31 33 35 42 45 54 55 62 63 66 67 70 77 81 90 93 99 105 110 126 134 135 154 155 162 165 186 189 198 201 210 217 231 270 279 297 310 315 330 335 341 378 385 402 405 434 462 465 469 495 558 567 594 603 630 651 670 682 693 737 770 810 837 891 930 938 945 990 1005 1023 1085 1134 1155 1206 1302 1386 1395 1407 1474 1485 1674 1705 1782 1809 1890 1953 2010 2046 2077 2079 2170 2211 2310 2345 2387 2511 2790 2814 2835 2970 3015 3069 3255 3410 3465 3618 3685 3906 4154 4158 4185 4221 4422 4455 4690 4774 5022 5115 5159 5427 5670 5859 6030 6138 6231 6237 6510 6633 6930 7035 7161 7370 8370 8442 8910 9045 9207 9765 10230 10318 10385 10395 10854 11055 11718 11935 12462 12474 12555 12663 13266 14070 14322 14539 15345 15477 17577 18090 18414 18693 19530 19899 20770 20790 21105 21483 22110 22847 23870 25110 25326 25795 27135 27621 29078 29295 30690 30954 31155 31185 33165 35154 35805 37386 37989 39798 42210 42966 43617 45694 46035 46431 51590 54270 55242 56079 58590 59697 62310 62370 63315 64449 66330 68541 71610 72695 75978 77385 87234 87885 92070 92862 93465 99495 107415 112158 114235 119394 126630 128898 130851 137082 138105 139293 145390 154770 159929 168237 175770 186930 189945 193347 198990 205623 214830 218085 228470 232155 261702 276210 278586 280395 298485 319858 322245 336474 342705 379890 386694 392553 411246 417879 436170 464310 479787 560790 596970 616869 644490 654255 685410 696465 785106 799645 835758 841185 959574 966735 1028115 1177659 1233738 1308510 1392930 1439361 1599290 1682370 1850607 1933470 1962765 2056230 2089395 2355318 2398935 2878722 3084345 3701214 3925530 4178790 4318083 4797870 5888295 6168690 7196805 8636166 9253035 11776590 12954249 14393610 18506070 21590415 25908498 43180830 64771245 129542490
- Sum of all divisors σ(n): 454975488
- Sum of proper divisors (its aliquot sum) s(n): 325432998
- 129542490 is an abundant number, because the sum of its proper divisors (325432998) is greater than itself. Its abundance is 195890508
Bases of 129542490
- Binary: 1111011100010101001010110102
- Hexadecimal: 0x7B8A95A
- Base-36: 254JMI
Squares and roots of 129542490
- 129542490 squared (1295424902) is 16781256715400100
- 129542490 cubed (1295424903) is 2173885780242150300249000
-
The
square root of 129542490 is 11381.6734270493 -
The
cube root of 129542490 is 505.9847334571
Scales and comparisons
How big is 129542490?- 129,542,490 seconds is equal to 4 years, 6 weeks, 1 day, 8 hours, 1 minute, 30 seconds.
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To count from 1 to 129,542,490 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 129542490 cubic inches would be around 42.2 feet tall.
Recreational maths with 129542490
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