18734431872

Names of 18734431872

• Cardinal: 18734431872 can be written as Eighteen billion, seven hundred thirty-four million, four hundred thirty-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8734431872 × 10¹⁰

Factors of 18734431872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 121110

Divisors of 18734431872

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 31 32 39 48 52 62 64 78 93 96 104 124 128 156 186 192 208 248 312 372 384 403 416 496 624 744 806 832 992 1209 1248 1488 1612 1664 1984 2418 2496 2976 3224 3968 4836 4992 5952 6448 9672 11904 12896 19344 25792 38688 51584 77376 121061 154752 242122 363183 484244 726366 968488 1452732 1573793 1936976 2905464 3147586 3752891 3873952 4721379 5810928 6295172 7505782 7747904 9442758 11258673 11621856 12590344 15011564 15495808 18885516 22517346 23243712 25180688 30023128 37771032 45034692 46487424 48787583 50361376 60046256 75542064 90069384 97575166 100722752 120092512 146362749 151084128 180138768 195150332 201445504 240185024 292725498 302168256 360277536 390300664 480370048 585450996 604336512 720555072 780601328 1170901992 1441110144 1561202656 2341803984 3122405312 4683607968 6244810624 9367215936 18734431872
• Sum of all divisors σ(n): 55320491520
• Sum of proper divisors (its aliquot sum) s(n): 36586059648
• 18734431872 is an abundant number, because the sum of its proper divisors (36586059648) is greater than itself. Its abundance is 17851627776

Bases of 18734431872

• Binary: 10001011100101010001011111010000000₂
• Hexadecimal: 0x45CA8BE80
• Base-36: 8LTZW5C

Squares and roots of 18734431872

• 18734431872 squared (18734431872²) is 350978937566609424384
• 18734431872 cubed (18734431872³) is 6575390994348585723155183566848
• The square root of 18734431872 is 136873.7808055291
• The cube root of 18734431872 is 2655.9109480471

Scales and comparisons

• 18,734,431,872 seconds is equal to 595 years, 36 weeks, 1 day, 16 hours, 51 minutes, 12 seconds.
• To count from 1 to 18,734,431,872 would take you about one thousand, one hundred ninety-one 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 18734431872 cubic inches would be around 221.3 feet tall.

Recreational maths with 18734431872

• 18734431872 backwards is 27813443781
• 18734431872 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18734431872's digits is 48
• More coming soon!