72939930
72,939,930 is an even composite number composed of six prime numbers multiplied together.
72939930 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 72939930:
2 × 3 × 5 × 72 × 292 × 59
(2 × 3 × 5 × 7 × 7 × 29 × 29 × 59)See below for interesting mathematical facts about the number 72939930 from the Numbermatics database.
Names of 72939930
- Cardinal: 72939930 can be written as Seventy-two million, nine hundred thirty-nine thousand, nine hundred thirty.
Scientific notation
- Scientific notation: 7.293993 × 107
Factors of 72939930
Divisors of 72939930
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 7 10 14 15 21 29 30 35 42 49 58 59 70 87 98 105 118 145 147 174 177 203 210 245 290 294 295 354 406 413 435 490 590 609 735 826 841 870 885 1015 1218 1239 1421 1470 1682 1711 1770 2030 2065 2478 2523 2842 2891 3045 3422 4130 4205 4263 5046 5133 5782 5887 6090 6195 7105 8410 8526 8555 8673 10266 11774 11977 12390 12615 14210 14455 17110 17346 17661 21315 23954 25230 25665 28910 29435 35322 35931 41209 42630 43365 49619 51330 58870 59885 71862 82418 83839 86730 88305 99238 119770 123627 148857 167678 176610 179655 206045 247254 248095 251517 297714 347333 359310 412090 419195 496190 503034 618135 694666 744285 838390 1041999 1236270 1257585 1488570 1736665 2083998 2431331 2515170 3473330 4862662 5209995 7293993 10419990 12156655 14587986 24313310 36469965 72939930
- Sum of all divisors σ(n): 214475040
- Sum of proper divisors (its aliquot sum) s(n): 141535110
- 72939930 is an abundant number, because the sum of its proper divisors (141535110) is greater than itself. Its abundance is 68595180
Bases of 72939930
- Binary: 1000101100011111001100110102
- Hexadecimal: 0x458F99A
- Base-36: 17FCT6
Squares and roots of 72939930
- 72939930 squared (729399302) is 5320233388404900
- 72939930 cubed (729399303) is 388057450933916217657000
-
The
square root of 72939930 is 8540.4876909931 -
The
cube root of 72939930 is 417.8192521501
Scales and comparisons
How big is 72939930?- 72,939,930 seconds is equal to 2 years, 16 weeks, 4 days, 5 hours, 5 minutes, 30 seconds.
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To count from 1 to 72,939,930 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 72939930 cubic inches would be around 34.8 feet tall.
Recreational maths with 72939930
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