18123620940

Names of 18123620940

• Cardinal: 18123620940 can be written as Eighteen billion, one hundred twenty-three million, six hundred twenty thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.812362094 × 10¹⁰

Factors of 18123620940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 7681

Divisors of 18123620940

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 61 73 90 108 122 135 146 180 183 219 244 270 292 305 365 366 438 540 549 610 657 730 732 876 915 1095 1098 1220 1314 1460 1647 1830 1971 2190 2196 2628 2745 3285 3294 3660 3942 4380 4453 5490 6570 6588 7537 7884 8235 8906 9855 10980 13140 13359 15074 16470 17812 19710 22265 22611 26718 30148 32940 37685 39420 40077 44530 45222 53436 66795 67833 75370 80154 89060 90444 113055 120231 133590 135666 150740 160308 200385 203499 226110 240462 267180 271332 339165 400770 406998 452220 459757 480924 550201 601155 678330 801540 813996 919514 1017495 1100402 1202310 1356660 1379271 1650603 1839028 2034990 2200804 2298785 2404620 2751005 2758542 3301206 4069980 4137813 4597570 4951809 5502010 5517084 6602412 6896355 8253015 8275626 9195140 9903618 11004020 12413439 13792710 14855427 16506030 16551252 19807236 20689065 24759045 24826878 27585420 29710854 33012060 33562261 41378130 49518090 49653756 59421708 62067195 67124522 74277135 82756260 99036180 100686783 124134390 134249044 148554270 167811305 201373566 248268780 297108540 302060349 335622610 402747132 503433915 604120698 671245220 906181047 1006867830 1208241396 1510301745 1812362094 2013735660 3020603490 3624724188 4530905235 6041206980 9061810470 18123620940
• Sum of all divisors σ(n): 58101697920
• Sum of proper divisors (its aliquot sum) s(n): 39978076980
• 18123620940 is an abundant number, because the sum of its proper divisors (39978076980) is greater than itself. Its abundance is 21854456040

Bases of 18123620940

• Binary: 10000111000010000001000001001001100₂
• Hexadecimal: 0x43840824C
• Base-36: 8BQC3F0

Squares and roots of 18123620940

• 18123620940 squared (18123620940²) is 328465635976806483600
• 18123620940 cubed (18123620940³) is 5952986678259667340500726584000
• The square root of 18123620940 is 134623.9983806751
• The cube root of 18123620940 is 2626.7273137485

Scales and comparisons

• 18,123,620,940 seconds is equal to 576 years, 14 weeks, 2 days, 3 hours, 9 minutes.
• To count from 1 to 18,123,620,940 would take you about one thousand, one hundred fifty-two 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 18123620940 cubic inches would be around 218.9 feet tall.

Recreational maths with 18123620940

• 18123620940 backwards is 04902632181
• 18123620940 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18123620940's digits is 36
• More coming soon!