Base | Representation |
---|---|
bin | 11101001011000011… |
… | …101100010010100011 |
3 | 2222212000200121020112 |
4 | 131023003230102203 |
5 | 1003122422430430 |
6 | 22220130401535 |
7 | 2156144601650 |
oct | 351303542243 |
9 | 88760617215 |
10 | 31324030115 |
11 | 123146644a4 |
12 | 60a24302ab |
13 | 2c52794981 |
14 | 1732222c27 |
15 | c34eb4195 |
hex | 74b0ec4a3 |
31324030115 has 16 divisors (see below), whose sum is σ = 43360157952. Its totient is φ = 21278590944.
The previous prime is 31324030103. The next prime is 31324030121. The reversal of 31324030115 is 51103042313.
It is a cyclic number.
It is not a de Polignac number, because 31324030115 - 28 = 31324029859 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4178369 + ... + 4185858.
It is an arithmetic number, because the mean of its divisors is an integer number (2710009872).
Almost surely, 231324030115 is an apocalyptic number.
31324030115 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
31324030115 is a deficient number, since it is larger than the sum of its proper divisors (12036127837).
31324030115 is a wasteful number, since it uses less digits than its factorization.
31324030115 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8364346.
The product of its (nonzero) digits is 1080, while the sum is 23.
Adding to 31324030115 its reverse (51103042313), we get a palindrome (82427072428).
The spelling of 31324030115 in words is "thirty-one billion, three hundred twenty-four million, thirty thousand, one hundred fifteen".
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