72155070
72,155,070 is an even composite number composed of six prime numbers multiplied together.
72155070 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 72155070:
2 × 33 × 5 × 13 × 61 × 337
(2 × 3 × 3 × 3 × 5 × 13 × 61 × 337)See below for interesting mathematical facts about the number 72155070 from the Numbermatics database.
Names of 72155070
- Cardinal: 72155070 can be written as Seventy-two million, one hundred fifty-five thousand and seventy.
Scientific notation
- Scientific notation: 7.215507 × 107
Factors of 72155070
Divisors of 72155070
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 61 65 78 90 117 122 130 135 183 195 234 270 305 337 351 366 390 549 585 610 674 702 793 915 1011 1098 1170 1586 1647 1685 1755 1830 2022 2379 2745 3033 3294 3370 3510 3965 4381 4758 5055 5490 6066 7137 7930 8235 8762 9099 10110 11895 13143 14274 15165 16470 18198 20557 21411 21905 23790 26286 30330 35685 39429 41114 42822 43810 45495 61671 65715 71370 78858 90990 102785 107055 118287 123342 131430 185013 197145 205570 214110 236574 267241 308355 370026 394290 534482 555039 591435 616710 801723 925065 1110078 1182870 1336205 1603446 1850130 2405169 2672410 2775195 4008615 4810338 5550390 7215507 8017230 12025845 14431014 24051690 36077535 72155070
- Sum of all divisors σ(n): 211236480
- Sum of proper divisors (its aliquot sum) s(n): 139081410
- 72155070 is an abundant number, because the sum of its proper divisors (139081410) is greater than itself. Its abundance is 66926340
Bases of 72155070
- Binary: 1000100110011111111101111102
- Hexadecimal: 0x44CFFBE
- Base-36: 16YJ7I
Squares and roots of 72155070
- 72155070 squared (721550702) is 5206354126704900
- 72155070 cubed (721550703) is 375664846457180928843000
-
The
square root of 72155070 is 8494.4140468899 -
The
cube root of 72155070 is 416.3152158187
Scales and comparisons
How big is 72155070?- 72,155,070 seconds is equal to 2 years, 15 weeks, 2 days, 3 hours, 4 minutes, 30 seconds.
-
To count from 1 to 72,155,070 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 72155070 cubic inches would be around 34.7 feet tall.
Recreational maths with 72155070
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