25438425990
25,438,425,990 is an even composite number composed of six prime numbers multiplied together.
25438425990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 25438425990:
2 × 3 × 5 × 71 × 181 × 65983
See below for interesting mathematical facts about the number 25438425990 from the Numbermatics database.
Names of 25438425990
- Cardinal: 25438425990 can be written as Twenty-five billion, four hundred thirty-eight million, four hundred twenty-five thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.543842599 × 1010
Factors of 25438425990
Divisors of 25438425990
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 15 30 71 142 181 213 355 362 426 543 710 905 1065 1086 1810 2130 2715 5430 12851 25702 38553 64255 65983 77106 128510 131966 192765 197949 329915 385530 395898 659830 989745 1979490 4684793 9369586 11942923 14054379 23423965 23885846 28108758 35828769 46847930 59714615 70271895 71657538 119429230 140543790 179143845 358287690 847947533 1695895066 2543842599 4239737665 5087685198 8479475330 12719212995 25438425990
- Sum of all divisors σ(n): 62255112192
- Sum of proper divisors (its aliquot sum) s(n): 36816686202
- 25438425990 is an abundant number, because the sum of its proper divisors (36816686202) is greater than itself. Its abundance is 11378260212
Bases of 25438425990
- Binary: 101111011000011111110010011100001102
- Hexadecimal: 0x5EC3F9386
- Base-36: BOPDR46
Squares and roots of 25438425990
- 25438425990 squared (254384259902) is 647113516848707480100
- 25438425990 cubed (254384259903) is 16461549305484463259683247799000
-
The
square root of 25438425990 is 159494.2819978195 -
The
cube root of 25438425990 is 2941.0116526375
Scales and comparisons
How big is 25438425990?- 25,438,425,990 seconds is equal to 808 years, 44 weeks, 6 days, 5 hours, 26 minutes, 30 seconds.
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To count from 1 to 25,438,425,990 would take you about one thousand, six hundred seventeen 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 25438425990 cubic inches would be around 245.1 feet tall.
Recreational maths with 25438425990
- 25438425990 backwards is 09952483452
- The number of decimal digits it has is: 11
- The sum of 25438425990's digits is 51
- More coming soon!
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