129230400

Names of 129230400

• Cardinal: 129230400 can be written as One hundred twenty-nine million, two hundred thirty thousand, four hundred.

Scientific notation

• Scientific notation: 1.292304 × 10⁸

Factors of 129230400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 151

Divisors of 129230400

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 19 20 24 25 26 30 32 38 39 40 48 50 52 57 60 64 65 75 76 78 80 95 96 100 104 109 114 120 130 150 152 156 160 190 192 195 200 208 218 228 240 247 260 285 300 304 312 320 325 327 380 390 400 416 436 456 475 480 494 520 545 570 600 608 624 650 654 741 760 780 800 832 872 912 950 960 975 988 1040 1090 1140 1200 1216 1235 1248 1300 1308 1417 1425 1482 1520 1560 1600 1635 1744 1824 1900 1950 1976 2071 2080 2180 2280 2400 2470 2496 2600 2616 2725 2834 2850 2964 3040 3120 3270 3488 3648 3705 3800 3900 3952 4142 4160 4251 4360 4560 4800 4940 5200 5232 5450 5668 5700 5928 6080 6175 6213 6240 6540 6976 7085 7410 7600 7800 7904 8175 8284 8502 8720 9120 9880 10355 10400 10464 10900 11336 11400 11856 12350 12426 12480 13080 14170 14820 15200 15600 15808 16350 16568 17004 17440 18240 18525 19760 20710 20800 20928 21255 21800 22672 22800 23712 24700 24852 26160 26923 28340 29640 30400 31065 31200 32700 33136 34008 34880 35425 37050 39520 41420 42510 43600 45344 45600 47424 49400 49704 51775 52320 53846 56680 59280 62130 62400 65400 66272 68016 70850 74100 79040 80769 82840 85020 87200 90688 91200 98800 99408 103550 104640 106275 107692 113360 118560 124260 130800 132544 134615 136032 141700 148200 155325 161538 165680 170040 174400 197600 198816 207100 212550 215384 226720 237120 248520 261600 269230 272064 283400 296400 310650 323076 331360 340080 395200 397632 403845 414200 425100 430768 453440 497040 523200 538460 566800 592800 621300 646152 662720 673075 680160 807690 828400 850200 861536 994080 1076920 1133600 1185600 1242600 1292304 1346150 1360320 1615380 1656800 1700400 1723072 1988160 2019225 2153840 2267200 2485200 2584608 2692300 3230760 3313600 3400800 4038450 4307680 4970400 5169216 5384600 6461520 6801600 8076900 8615360 9940800 10769200 12923040 16153800 21538400 25846080 32307600 43076800 64615200 129230400
• Sum of all divisors σ(n): 485038400
• Sum of proper divisors (its aliquot sum) s(n): 355808000
• 129230400 is an abundant number, because the sum of its proper divisors (355808000) is greater than itself. Its abundance is 226577600

Bases of 129230400

• Binary: 111101100111110011001000000₂
• Hexadecimal: 0x7B3E640
• Base-36: 24XUTC

Squares and roots of 129230400

• 129230400 squared (129230400²) is 16700496284160000
• 129230400 cubed (129230400³) is 2158211815000510464000000
• The square root of 129230400 is 11367.9549612057
• The cube root of 129230400 is 505.5780721409

Scales and comparisons

• 129,230,400 seconds is equal to 4 years, 5 weeks, 4 days, 17 hours, 20 minutes.
• To count from 1 to 129,230,400 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 129230400 cubic inches would be around 42.1 feet tall.

Recreational maths with 129230400

• 129230400 backwards is 004032921
• The number of decimal digits it has is: 9
• The sum of 129230400's digits is 21
• More coming soon!