Base | Representation |
---|---|
bin | 111011010010… |
… | …0000111010010 |
3 | 2011111001222222 |
4 | 1312210013102 |
5 | 30424042124 |
6 | 3030101042 |
7 | 525116624 |
oct | 166440722 |
9 | 64431888 |
10 | 31080914 |
11 | 165a9607 |
12 | a4aa782 |
13 | 6592c97 |
14 | 41b0c14 |
15 | 2ade25e |
hex | 1da41d2 |
31080914 has 8 divisors (see below), whose sum is σ = 47049420. Its totient is φ = 15397776.
The previous prime is 31080901. The next prime is 31080919. The reversal of 31080914 is 41908013.
It can be written as a sum of positive squares in 2 ways, for example, as 31080625 + 289 = 5575^2 + 17^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (31080919) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71069 + ... + 71504.
Almost surely, 231080914 is an apocalyptic number.
31080914 is a deficient number, since it is larger than the sum of its proper divisors (15968506).
31080914 is a wasteful number, since it uses less digits than its factorization.
31080914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142684.
The product of its (nonzero) digits is 864, while the sum is 26.
The square root of 31080914 is about 5575.0259192223. The cubic root of 31080914 is about 314.4111414168.
Adding to 31080914 its reverse (41908013), we get a palindrome (72988927).
The spelling of 31080914 in words is "thirty-one million, eighty thousand, nine hundred fourteen".
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