18400042920

Names of 18400042920

• Cardinal: 18400042920 can be written as Eighteen billion, four hundred million, forty-two thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.840004292 × 10¹⁰

Factors of 18400042920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1519

Divisors of 18400042920

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 49 56 60 70 84 98 105 120 140 147 168 196 210 245 280 294 343 392 409 420 490 588 686 735 818 840 980 1029 1093 1176 1227 1372 1470 1636 1715 1960 2045 2058 2186 2454 2744 2863 2940 3272 3279 3430 4090 4116 4372 4908 5145 5465 5726 5880 6135 6558 6860 7651 8180 8232 8589 8744 9816 10290 10930 11452 12270 13116 13720 14315 15302 16360 16395 17178 20041 20580 21860 22904 22953 24540 26232 28630 30604 32790 34356 38255 40082 41160 42945 43720 45906 49080 53557 57260 60123 61208 65580 68712 76510 80164 85890 91812 100205 107114 114520 114765 120246 131160 140287 153020 160328 160671 171780 183624 200410 214228 229530 240492 267785 280574 300615 306040 321342 343560 374899 400820 420861 428456 447037 459060 480984 535570 561148 601230 642684 701435 749798 801640 803355 841722 894074 918120 1071140 1122296 1124697 1202460 1285368 1341111 1402870 1499596 1606710 1683444 1788148 1874495 2104305 2142280 2235185 2249394 2404920 2682222 2805740 2999192 3129259 3213420 3366888 3576296 3748990 4208610 4470370 4498788 5364444 5611480 5623485 6258518 6426840 6705555 7497980 8417220 8940740 8997576 9387777 10728888 11246970 12517036 13411110 14995960 15646295 16834440 17881480 18775554 21904813 22493940 25034072 26822220 31292590 37551108 43809626 44987880 46938885 53644440 62585180 65714439 75102216 87619252 93877770 109524065 125170360 131428878 153333691 175238504 187755540 219048130 262857756 306667382 328572195 375511080 438096260 460001073 525715512 613334764 657144390 766668455 876192520 920002146 1226669528 1314288780 1533336910 1840004292 2300005365 2628577560 3066673820 3680008584 4600010730 6133347640 9200021460 18400042920
• Sum of all divisors σ(n): 64589760000
• Sum of proper divisors (its aliquot sum) s(n): 46189717080
• 18400042920 is an abundant number, because the sum of its proper divisors (46189717080) is greater than itself. Its abundance is 27789674160

Bases of 18400042920

• Binary: 10001001000101110100101111110101000₂
• Hexadecimal: 0x448BA5FA8
• Base-36: 8GAWRZC

Squares and roots of 18400042920

• 18400042920 squared (18400042920²) is 338561579457842126400
• 18400042920 cubed (18400042920³) is 6229547593087285456344065088000
• The square root of 18400042920 is 135646.7578676321
• The cube root of 18400042920 is 2640.0142962955

Scales and comparisons

• 18,400,042,920 seconds is equal to 585 years, 3 weeks, 2 days, 11 hours, 2 minutes.
• To count from 1 to 18,400,042,920 would take you about one thousand, one hundred seventy 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 18400042920 cubic inches would be around 220 feet tall.

Recreational maths with 18400042920

• 18400042920 backwards is 02924000481
• 18400042920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18400042920's digits is 30
• More coming soon!