13791281868

Names of 13791281868

• Cardinal: 13791281868 can be written as Thirteen billion, seven hundred ninety-one million, two hundred eighty-one thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 1.3791281868 × 10¹⁰

Factors of 13791281868

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9945

Divisors of 13791281868

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 49 52 61 63 78 84 91 98 117 122 126 147 156 182 183 196 234 244 252 273 294 364 366 427 441 468 546 549 588 637 732 793 819 854 882 1092 1098 1274 1281 1586 1638 1708 1764 1911 2196 2379 2548 2562 2989 3172 3276 3822 3843 4758 5124 5551 5733 5978 7137 7644 7686 8967 9516 9859 11102 11466 11956 14274 15372 16653 17934 19718 22204 22932 26901 28548 29577 33306 35868 38857 39436 49959 53802 59154 66612 69013 77714 88731 99918 107604 116571 118308 128167 138026 155428 177462 199836 207039 233142 256334 276052 349713 354924 384501 414078 466284 483091 512668 601399 621117 699426 769002 828156 897169 966182 1153503 1202798 1242234 1398852 1449273 1538004 1794338 1804197 1932364 2307006 2405596 2484468 2691507 2898546 3588676 3608394 4209793 4347819 4614012 5383014 5412591 5797092 6280183 7216788 7818187 8074521 8419586 8695638 10766028 10825182 12560366 12629379 15636374 16149042 16839172 17391276 18840549 21650364 23454561 25120732 25258758 29468551 31272748 32298084 37681098 37888137 46909122 50517516 54727309 56521647 58937102 70363683 75362196 75776274 88405653 93818244 109454618 113043294 117874204 140727366 151552548 164181927 176811306 218909236 226086588 265216959 281454732 328363854 353622612 383091163 492545781 530433918 656727708 766182326 985091562 1060867836 1149273489 1532364652 1970183124 2298546978 3447820467 4597093956 6895640934 13791281868
• Sum of all divisors σ(n): 44392835760
• Sum of proper divisors (its aliquot sum) s(n): 30601553892
• 13791281868 is an abundant number, because the sum of its proper divisors (30601553892) is greater than itself. Its abundance is 16810272024

Bases of 13791281868

• Binary: 1100110110000001100100001011001100₂
• Hexadecimal: 0x3360642CC
• Base-36: 6C2Z170

Squares and roots of 13791281868

• 13791281868 squared (13791281868²) is 190199455562625569424
• 13791281868 cubed (13791281868³) is 2623094302804309754070386404032
• The square root of 13791281868 is 117436.2885483017
• The cube root of 13791281868 is 2398.1050938649

Scales and comparisons

• 13,791,281,868 seconds is equal to 438 years, 27 weeks, 7 hours, 37 minutes, 48 seconds.
• To count from 1 to 13,791,281,868 would take you about eight hundred seventy-seven 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 13791281868 cubic inches would be around 199.8 feet tall.

Recreational maths with 13791281868

• 13791281868 backwards is 86818219731
• The number of decimal digits it has is: 11
• The sum of 13791281868's digits is 54
• More coming soon!