129450420
129,450,420 is an even composite number composed of seven prime numbers multiplied together.
129450420 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 129450420:
22 × 33 × 5 × 11 × 19 × 31 × 37
(2 × 2 × 3 × 3 × 3 × 5 × 11 × 19 × 31 × 37)See below for interesting mathematical facts about the number 129450420 from the Numbermatics database.
Names of 129450420
- Cardinal: 129450420 can be written as One hundred twenty-nine million, four hundred fifty thousand, four hundred twenty.
Scientific notation
- Scientific notation: 1.2945042 × 108
Factors of 129450420
Divisors of 129450420
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 9 10 11 12 15 18 19 20 22 27 30 31 33 36 37 38 44 45 54 55 57 60 62 66 74 76 90 93 95 99 108 110 111 114 124 132 135 148 155 165 171 180 185 186 190 198 209 220 222 228 270 279 285 297 310 330 333 341 342 370 372 380 396 407 418 444 465 495 513 540 555 558 570 589 594 620 627 660 666 682 684 703 740 814 836 837 855 930 990 999 1023 1026 1045 1110 1116 1140 1147 1178 1188 1221 1254 1332 1364 1395 1406 1485 1628 1665 1674 1705 1710 1767 1860 1881 1980 1998 2035 2046 2052 2090 2109 2220 2294 2356 2442 2508 2565 2790 2812 2945 2970 3069 3135 3330 3348 3410 3420 3441 3515 3534 3663 3762 3996 4070 4092 4180 4185 4218 4588 4884 4995 5115 5130 5301 5580 5643 5735 5890 5940 6105 6138 6270 6327 6479 6660 6820 6882 7030 7068 7326 7524 7733 8140 8370 8436 8835 9207 9405 9990 10230 10260 10323 10545 10602 10989 11286 11470 11780 12210 12276 12540 12617 12654 12958 13764 14060 14652 15345 15466 15903 16740 17205 17670 18315 18414 18810 18981 19437 19980 20460 20646 21090 21204 21793 21978 22572 22940 23199 24420 25234 25308 25916 26505 28215 30690 30932 30969 31635 31806 32395 34410 35340 36630 36828 37620 37851 37962 38665 38874 41292 42180 43586 43956 46035 46398 50468 51615 53010 54945 56430 58311 61380 61938 63085 63270 63612 64790 65379 68820 69597 73260 75702 75924 77330 77748 79515 87172 92070 92796 94905 97185 103230 106020 108965 109890 112860 113553 115995 116622 123876 126170 126540 129580 130758 139194 151404 154660 154845 159030 174933 184140 189255 189810 194370 196137 206460 208791 217930 219780 227106 231990 233244 239723 252340 261516 278388 291555 309690 318060 326895 340659 347985 349866 378510 379620 388740 392274 417582 435860 454212 463980 479446 567765 583110 588411 619380 653790 681318 695970 699732 719169 757020 784548 835164 874665 958892 980685 1043955 1135530 1166220 1176822 1198615 1307580 1362636 1391940 1438338 1703295 1749330 1961370 2087910 2157507 2271060 2353644 2397230 2876676 2942055 3406590 3498660 3595845 3922740 4175820 4315014 4794460 5884110 6472521 6813180 7191690 8630028 10787535 11768220 12945042 14383380 21575070 25890084 32362605 43150140 64725210 129450420
- Sum of all divisors σ(n): 490291200
- Sum of proper divisors (its aliquot sum) s(n): 360840780
- 129450420 is an abundant number, because the sum of its proper divisors (360840780) is greater than itself. Its abundance is 231390360
Bases of 129450420
- Binary: 1111011011101000001101101002
- Hexadecimal: 0x7B741B4
- Base-36: 252KL0
Squares and roots of 129450420
- 129450420 squared (1294504202) is 16757411238176400
- 129450420 cubed (1294504203) is 2169253922894655014088000
-
The
square root of 129450420 is 11377.6280480599 -
The
cube root of 129450420 is 505.8648318569
Scales and comparisons
How big is 129450420?- 129,450,420 seconds is equal to 4 years, 6 weeks, 6 hours, 27 minutes.
-
To count from 1 to 129,450,420 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 129450420 cubic inches would be around 42.2 feet tall.
Recreational maths with 129450420
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