18399917718

Names of 18399917718

• Cardinal: 18399917718 can be written as Eighteen billion, three hundred ninety-nine million, nine hundred seventeen thousand, seven hundred eighteen.

Scientific notation

• Scientific notation: 1.8399917718 × 10¹⁰

Factors of 18399917718

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 855

Divisors of 18399917718

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 19 21 26 27 38 39 42 54 57 63 78 81 91 114 117 126 133 162 171 182 189 234 243 247 266 273 342 351 378 399 486 494 513 546 567 702 729 741 798 811 819 1026 1053 1134 1197 1458 1482 1539 1622 1638 1701 1729 2106 2187 2223 2394 2433 2457 3078 3159 3402 3458 3591 4374 4446 4617 4866 4914 5103 5187 5677 6318 6561 6669 7182 7299 7371 9234 9477 10206 10374 10543 10773 11354 13122 13338 13851 14598 14742 15309 15409 15561 17031 18954 20007 21086 21546 21897 22113 27702 28431 30618 30818 31122 31629 32319 34062 40014 41553 43794 44226 45927 46227 46683 51093 56862 60021 63258 64638 65691 66339 73801 83106 85293 91854 92454 93366 94887 96957 102186 107863 120042 124659 131382 132678 138681 140049 147602 153279 170586 180063 189774 193914 197073 199017 200317 215726 221403 249318 277362 280098 284661 290871 306558 323589 360126 394146 398034 400634 416043 420147 442806 459837 540189 569322 581742 591219 597051 600951 647178 664209 832086 840294 853983 872613 919674 970767 1080378 1182438 1194102 1201902 1248129 1260441 1328418 1379511 1402219 1620567 1707966 1745226 1773657 1802853 1941534 1992627 2496258 2520882 2561949 2759022 2804438 2912301 3241134 3547314 3605706 3744387 3781323 3985254 4138533 4206657 5123898 5320971 5408559 5824602 5977881 7488774 7562646 7685847 8277066 8413314 8736903 10641942 10817118 11233161 11343969 11955762 12415599 12619971 15371694 16225677 17473806 17933643 22466322 22687938 23057541 24831198 25239942 26210709 32451354 33699483 35867286 37246797 37859913 46115082 48677031 52421418 53800929 67398966 69172623 74493594 75719826 78632127 97354062 101098449 107601858 113579739 138345246 146031093 157264254 161402787 202196898 227159478 235896381 292062186 322805574 340739217 438093279 471792762 484208361 681478434 707689143 876186558 968416722 1022217651 1314279837 1415378286 2044435302 2628559674 3066652953 6133305906 9199958859 18399917718
• Sum of all divisors σ(n): 53698794240
• Sum of proper divisors (its aliquot sum) s(n): 35298876522
• 18399917718 is an abundant number, because the sum of its proper divisors (35298876522) is greater than itself. Its abundance is 16898958804

Bases of 18399917718

• Binary: 10001001000101110000111011010010110₂
• Hexadecimal: 0x448B87696
• Base-36: 8GAU3DI

Squares and roots of 18399917718

• 18399917718 squared (18399917718²) is 338556972029170327524
• 18399917718 cubed (18399917718³) is 6229420428191961522248710670232
• The square root of 18399917718 is 135646.2963666903
• The cube root of 18399917718 is 2640.0083083417

Scales and comparisons

• 18,399,917,718 seconds is equal to 585 years, 3 weeks, 1 day, 15 minutes, 18 seconds.
• To count from 1 to 18,399,917,718 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 18399917718 cubic inches would be around 220 feet tall.

Recreational maths with 18399917718

• 18399917718 backwards is 81771999381
• 18399917718 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18399917718's digits is 63
• More coming soon!