18072990400
18,072,990,400 is an even composite number composed of four prime numbers multiplied together.
18072990400 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 18072990400:
26 × 52 × 373 × 223
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 37 × 37 × 37 × 223)See below for interesting mathematical facts about the number 18072990400 from the Numbermatics database.
Names of 18072990400
- Cardinal: 18072990400 can be written as Eighteen billion, seventy-two million, nine hundred ninety thousand, four hundred.
Scientific notation
- Scientific notation: 1.80729904 × 1010
Factors of 18072990400
Divisors of 18072990400
- Number of divisors d(n): 168
-
Complete list of divisors:
1 2 4 5 8 10 16 20 25 32 37 40 50 64 74 80 100 148 160 185 200 223 296 320 370 400 446 592 740 800 892 925 1115 1184 1369 1480 1600 1784 1850 2230 2368 2738 2960 3568 3700 4460 5476 5575 5920 6845 7136 7400 8251 8920 10952 11150 11840 13690 14272 14800 16502 17840 21904 22300 27380 29600 33004 34225 35680 41255 43808 44600 50653 54760 59200 66008 68450 71360 82510 87616 89200 101306 109520 132016 136900 165020 178400 202612 206275 219040 253265 264032 273800 305287 330040 356800 405224 412550 438080 506530 528064 547600 610574 660080 810448 825100 1013060 1095200 1221148 1266325 1320160 1526435 1620896 1650200 2026120 2190400 2442296 2532650 2640320 3052870 3241792 3300400 4052240 4884592 5065300 6105740 6600800 7632175 8104480 9769184 10130600 11295619 12211480 13201600 15264350 16208960 19538368 20261200 22591238 24422960 30528700 40522400 45182476 48845920 56478095 61057400 81044800 90364952 97691840 112956190 122114800 180729904 225912380 244229600 282390475 361459808 451824760 488459200 564780950 722919616 903649520 1129561900 1807299040 2259123800 3614598080 4518247600 9036495200 18072990400
- Sum of all divisors σ(n): 45911089280
- Sum of proper divisors (its aliquot sum) s(n): 27838098880
- 18072990400 is an abundant number, because the sum of its proper divisors (27838098880) is greater than itself. Its abundance is 9765108480
Bases of 18072990400
- Binary: 100001101010011101111110010110000002
- Hexadecimal: 0x4353BF2C0
- Base-36: 8AW6WN4
Squares and roots of 18072990400
- 18072990400 squared (180729904002) is 326632981998492160000
- 18072990400 cubed (180729904003) is 5903234747982121622155264000000
-
The
square root of 18072990400 is 134435.8226069227 -
The
cube root of 18072990400 is 2624.2790050097
Scales and comparisons
How big is 18072990400?- 18,072,990,400 seconds is equal to 574 years, 34 weeks, 4 days, 3 hours, 6 minutes, 40 seconds.
-
To count from 1 to 18,072,990,400 would take you about one thousand, one hundred forty-nine 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 18072990400 cubic inches would be around 218.7 feet tall.
Recreational maths with 18072990400
- 18072990400 backwards is 00409927081
- 18072990400 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18072990400's digits is 40
- More coming soon!
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