129148320

Names of 129148320

• Cardinal: 129148320 can be written as One hundred twenty-nine million, one hundred forty-eight thousand, three hundred twenty.

Scientific notation

• Scientific notation: 1.2914832 × 10⁸

Factors of 129148320

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 53

Divisors of 129148320

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 17 19 20 21 24 28 30 32 34 35 38 40 42 48 49 51 56 57 60 68 70 76 80 84 85 95 96 98 102 105 112 114 119 120 133 136 140 147 152 160 168 170 190 196 204 210 224 228 238 240 245 255 266 272 280 285 289 294 304 323 336 340 357 380 392 399 408 420 456 476 480 490 510 532 544 560 570 578 588 595 608 646 665 672 680 714 735 760 784 798 816 833 840 867 912 931 952 969 980 1020 1064 1120 1140 1156 1176 1190 1292 1330 1360 1428 1445 1470 1520 1568 1596 1615 1632 1666 1680 1734 1785 1824 1862 1904 1938 1960 1995 2023 2040 2128 2261 2280 2312 2352 2380 2499 2584 2660 2720 2793 2856 2890 2940 3040 3192 3230 3332 3360 3468 3570 3724 3808 3876 3920 3990 4046 4080 4165 4256 4335 4522 4560 4624 4655 4704 4760 4845 4998 5168 5320 5491 5586 5712 5780 5880 6069 6384 6460 6664 6783 6936 7140 7448 7752 7840 7980 8092 8160 8330 8670 9044 9120 9248 9310 9520 9690 9996 10115 10336 10640 10982 11172 11305 11424 11560 11760 12138 12495 12768 12920 13328 13566 13872 13965 14161 14280 14896 15504 15827 15960 16184 16473 16660 17340 18088 18620 19040 19380 19992 20230 21280 21964 22344 22610 23120 23520 24276 24990 25840 26656 27132 27455 27744 27930 28322 28560 29792 30345 31008 31654 31920 32368 32946 33320 33915 34680 36176 37240 38437 38760 39984 40460 42483 43928 44688 45220 46240 47481 48552 49980 51680 54264 54910 55860 56644 57120 60690 63308 63840 64736 65892 66640 67830 69360 70805 72352 74480 76874 77520 79135 79968 80920 82365 84966 87856 89376 90440 94962 97104 99960 108528 109820 111720 113288 115311 121380 126616 131784 133280 135660 138720 141610 148960 153748 155040 158270 161840 164730 169932 175712 180880 189924 192185 194208 199920 212415 217056 219640 223440 226576 230622 237405 242760 253232 263568 269059 271320 283220 307496 316540 323680 329460 339864 361760 379848 384370 399840 424830 439280 446880 453152 461244 474810 485520 506464 527136 538118 542640 566440 576555 614992 633080 658920 679728 759696 768740 807177 849660 878560 922488 949620 971040 1076236 1085280 1132880 1153110 1229984 1266160 1317840 1345295 1359456 1519392 1537480 1614354 1699320 1844976 1899240 2152472 2265760 2306220 2532320 2635680 2690590 3074960 3228708 3398640 3689952 3798480 4035885 4304944 4612440 5381180 6149920 6457416 6797280 7596960 8071770 8609888 9224880 10762360 12914832 16143540 18449760 21524720 25829664 32287080 43049440 64574160 129148320
• Sum of all divisors σ(n): 529169760
• Sum of proper divisors (its aliquot sum) s(n): 400021440
• 129148320 is an abundant number, because the sum of its proper divisors (400021440) is greater than itself. Its abundance is 270873120

Bases of 129148320

• Binary: 111101100101010010110100000₂
• Hexadecimal: 0x7B2A5A0
• Base-36: 24W3HC

Squares and roots of 129148320

• 129148320 squared (129148320²) is 16679288558822400
• 129148320 cubed (129148320³) is 2154102096167134138368000
• The square root of 129148320 is 11364.3442397703
• The cube root of 129148320 is 505.4710110649

Scales and comparisons

• 129,148,320 seconds is equal to 4 years, 5 weeks, 3 days, 18 hours, 32 minutes.
• To count from 1 to 129,148,320 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 129148320 cubic inches would be around 42.1 feet tall.

Recreational maths with 129148320

• 129148320 backwards is 023841921
• 129148320 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 129148320's digits is 30
• More coming soon!