72189700
72,189,700 is an even composite number composed of six prime numbers multiplied together.
72189700 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 72189700:
22 × 52 × 11 × 29 × 31 × 73
(2 × 2 × 5 × 5 × 11 × 29 × 31 × 73)See below for interesting mathematical facts about the number 72189700 from the Numbermatics database.
Names of 72189700
- Cardinal: 72189700 can be written as Seventy-two million, one hundred eighty-nine thousand, seven hundred.
Scientific notation
- Scientific notation: 7.21897 × 107
Factors of 72189700
Divisors of 72189700
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 4 5 10 11 20 22 25 29 31 44 50 55 58 62 73 100 110 116 124 145 146 155 220 275 290 292 310 319 341 365 550 580 620 638 682 725 730 775 803 899 1100 1276 1364 1450 1460 1550 1595 1606 1705 1798 1825 2117 2263 2900 3100 3190 3212 3410 3596 3650 4015 4234 4495 4526 6380 6820 7300 7975 8030 8468 8525 8990 9052 9889 10585 11315 15950 16060 17050 17980 19778 20075 21170 22475 22630 23287 24893 31900 34100 39556 40150 42340 44950 45260 46574 49445 49786 52925 56575 65627 80300 89900 93148 98890 99572 105850 113150 116435 124465 131254 197780 211700 226300 232870 247225 248930 262508 328135 465740 494450 497860 582175 622325 656270 721897 988900 1164350 1244650 1312540 1443794 1640675 2328700 2489300 2887588 3281350 3609485 6562700 7218970 14437940 18047425 36094850 72189700
- Sum of all divisors σ(n): 184988160
- Sum of proper divisors (its aliquot sum) s(n): 112798460
- 72189700 is an abundant number, because the sum of its proper divisors (112798460) is greater than itself. Its abundance is 40608760
Bases of 72189700
- Binary: 1000100110110000111000001002
- Hexadecimal: 0x44D8704
- Base-36: 16Z9XG
Squares and roots of 72189700
- 72189700 squared (721897002) is 5211352786090000
- 72189700 cubed (721897003) is 376205994222001273000000
-
The
square root of 72189700 is 8496.4522007719 -
The
cube root of 72189700 is 416.3818070743
Scales and comparisons
How big is 72189700?- 72,189,700 seconds is equal to 2 years, 15 weeks, 2 days, 12 hours, 41 minutes, 40 seconds.
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To count from 1 to 72,189,700 would take you about three 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 72189700 cubic inches would be around 34.7 feet tall.
Recreational maths with 72189700
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