18019678608

Names of 18019678608

• Cardinal: 18019678608 can be written as Eighteen billion, nineteen million, six hundred seventy-eight thousand, six hundred eight.

Scientific notation

• Scientific notation: 1.8019678608 × 10¹⁰

Factors of 18019678608

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 444

Divisors of 18019678608

• Number of divisors d(n): 280
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 53 54 72 81 103 106 108 144 159 162 206 212 216 243 283 309 318 324 412 424 432 477 486 566 618 636 648 729 824 848 849 927 954 972 1132 1236 1272 1296 1431 1458 1648 1698 1854 1908 1944 2264 2472 2544 2547 2781 2862 2916 3396 3708 3816 3888 4293 4528 4944 5094 5459 5562 5724 5832 6792 7416 7632 7641 8343 8586 10188 10918 11124 11448 11664 12879 13584 14832 14999 15282 16377 16686 17172 20376 21836 22248 22896 22923 25029 25758 29149 29998 30564 32754 33372 34344 38637 40752 43672 44496 44997 45846 49131 50058 51516 58298 59996 61128 65508 66744 68688 68769 75087 77274 87344 87447 89994 91692 98262 100116 103032 116596 119992 122256 131016 133488 134991 137538 147393 150174 154548 174894 179988 183384 196524 200232 206064 206307 233192 239984 262032 262341 269982 275076 294786 300348 309096 349788 359976 366768 393048 400464 404973 412614 442179 466384 524682 539964 550152 589572 600696 618192 699576 719952 786096 787023 809946 825228 884358 1049364 1079928 1100304 1179144 1201392 1214919 1326537 1399152 1544897 1574046 1619892 1650456 1768716 2098728 2159856 2358288 2361069 2429838 2653074 3089794 3148092 3239784 3300912 3537432 3644757 3979611 4197456 4634691 4722138 4859676 5306148 6179588 6296184 6479568 7074864 7083207 7289514 7959222 9269382 9444276 9719352 10612296 10934271 12359176 12592368 13904073 14166414 14579028 15918444 18538764 18888552 19438704 21224592 21249621 21868542 24718352 27808146 28332828 29158056 31836888 37077528 37777104 41712219 42499242 43737084 55616292 56665656 58316112 63673776 74155056 83424438 84998484 87474168 111232584 113331312 125136657 166848876 169996968 174948336 222465168 250273314 333697752 339993936 375409971 500546628 667395504 750819942 1001093256 1126229913 1501639884 2002186512 2252459826 3003279768 4504919652 6006559536 9009839304 18019678608
• Sum of all divisors σ(n): 54041487552
• Sum of proper divisors (its aliquot sum) s(n): 36021808944
• 18019678608 is an abundant number, because the sum of its proper divisors (36021808944) is greater than itself. Its abundance is 18002130336

Bases of 18019678608

• Binary: 10000110010000011100111100110010000₂
• Hexadecimal: 0x4320E7990
• Base-36: 8A0G900

Squares and roots of 18019678608

• 18019678608 squared (18019678608²) is 324708817135612817664
• 18019678608 cubed (18019678608³) is 5851148525967586125430585331712
• The square root of 18019678608 is 134237.3964586619
• The cube root of 18019678608 is 2621.6960934677

Scales and comparisons

• 18,019,678,608 seconds is equal to 572 years, 50 weeks, 3 days, 2 hours, 16 minutes, 48 seconds.
• To count from 1 to 18,019,678,608 would take you about one thousand, one hundred forty-five 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 18019678608 cubic inches would be around 218.5 feet tall.

Recreational maths with 18019678608

• 18019678608 backwards is 80687691081
• 18019678608 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18019678608's digits is 54
• More coming soon!