18321849945
18,321,849,945 is an odd composite number composed of six prime numbers multiplied together.
18321849945 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 18321849945:
33 × 5 × 72 × 113 × 127 × 193
(3 × 3 × 3 × 5 × 7 × 7 × 113 × 127 × 193)See below for interesting mathematical facts about the number 18321849945 from the Numbermatics database.
Names of 18321849945
- Cardinal: 18321849945 can be written as Eighteen billion, three hundred twenty-one million, eight hundred forty-nine thousand, nine hundred forty-five.
Scientific notation
- Scientific notation: 1.8321849945 × 1010
Factors of 18321849945
Divisors of 18321849945
- Number of divisors d(n): 192
-
Complete list of divisors:
1 3 5 7 9 15 21 27 35 45 49 63 105 113 127 135 147 189 193 245 315 339 381 441 565 579 635 735 791 889 945 965 1017 1143 1323 1351 1695 1737 1905 2205 2373 2667 2895 3051 3429 3955 4053 4445 5085 5211 5537 5715 6223 6615 6755 7119 8001 8685 9457 11865 12159 13335 14351 15255 16611 17145 18669 20265 21357 21809 24003 24511 26055 27685 28371 31115 35595 36477 40005 43053 47285 49833 56007 60795 65427 71755 73533 83055 85113 93345 100457 106785 109045 120015 122555 129159 141855 149499 152663 168021 171577 182385 196281 215265 220599 249165 255339 280035 301371 327135 367665 387477 425565 457989 502285 514731 588843 645795 661797 703199 747495 763315 840105 857885 904113 981405 1068641 1102995 1201039 1276695 1373967 1506855 1544193 1937385 2109597 2289945 2573655 2712339 2769743 2944215 3205923 3308985 3515995 3603117 4121901 4520565 4632579 5343205 6005195 6328791 6869835 7720965 8309229 9617769 10547985 10809351 13561695 13848715 16029615 18015585 18986373 19388201 20609505 23162895 24927687 28853307 31643955 32428053 41546145 48088845 54046755 58164603 74783061 94931865 96941005 124638435 135717407 144266535 162140265 174493809 290823015 373915305 407152221 523481427 678587035 872469045 1221456663 2035761105 2617407135 3664369989 6107283315 18321849945
- Sum of all divisors σ(n): 38726000640
- Sum of proper divisors (its aliquot sum) s(n): 20404150695
- 18321849945 is an abundant number, because the sum of its proper divisors (20404150695) is greater than itself. Its abundance is 2082300750
Bases of 18321849945
- Binary: 100010001000001000100111110010110012
- Hexadecimal: 0x444113E59
- Base-36: 8F0CTW9
Squares and roots of 18321849945
- 18321849945 squared (183218499452) is 335690185407096503025
- 18321849945 cubed (183218499453) is 6150465205038050866558288583625
-
The
square root of 18321849945 is 135358.2282131381 -
The
cube root of 18321849945 is 2636.2693108181
Scales and comparisons
How big is 18321849945?- 18,321,849,945 seconds is equal to 582 years, 30 weeks, 10 hours, 45 minutes, 45 seconds.
-
To count from 1 to 18,321,849,945 would take you about one thousand, one hundred sixty-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 18321849945 cubic inches would be around 219.7 feet tall.
Recreational maths with 18321849945
- 18321849945 backwards is 54994812381
- The number of decimal digits it has is: 11
- The sum of 18321849945's digits is 54
- More coming soon!
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