31156640321
31,156,640,321 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.
31156640321 is a prime number. Like all primes (except two), it is an odd number.
Prime factorization of 31156640321:
31156640321
See below for interesting mathematical facts about the number 31156640321 from the Numbermatics database.
Names of 31156640321
- Cardinal: 31156640321 can be written as Thirty-one billion, one hundred fifty-six million, six hundred forty thousand, three hundred twenty-one.
Scientific notation
- Scientific notation: 3.1156640321 × 1010
Factors of 31156640321
- Number of distinct prime factors ω(n): 1
- Total number of prime factors Ω(n): 1
- Sum of prime factors: 31156640321
Divisors of 31156640321
- Number of divisors d(n): 2
- Complete list of divisors:
- Sum of all divisors σ(n): 31156640322
- Sum of proper divisors (its aliquot sum) s(n): 1
- 31156640321 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 31156640320
Bases of 31156640321
- Binary: 111010000010001010010011010010000012
- Hexadecimal: 0x741149A41
- Base-36: EB9UXJ5
Squares and roots of 31156640321
- 31156640321 squared (311566403212) is 970736236092162983041
- 31156640321 cubed (311566403213) is 30244879754484860669518859796161
-
The
square root of 31156640321 is 176512.4367318065 -
The
cube root of 31156640321 is 3146.6628072523
Scales and comparisons
How big is 31156640321?- 31,156,640,321 seconds is equal to 990 years, 35 weeks, 4 days, 6 hours, 18 minutes, 41 seconds.
-
To count from 1 to 31,156,640,321 would take you about one thousand, nine hundred eighty-one 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 31156640321 cubic inches would be around 262.2 feet tall.
Recreational maths with 31156640321
- 31156640321 backwards is 12304665113
- 31156640321 is a
twin prime ! Its twin is 31156640323 - The number of decimal digits it has is: 11
- The sum of 31156640321's digits is 32
- More coming soon!
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