Base | Representation |
---|---|
bin | 11100111001001000… |
… | …001010111000100001 |
3 | 2222002001122120021010 |
4 | 130321020022320201 |
5 | 1002013420322423 |
6 | 22130223051133 |
7 | 2145532653243 |
oct | 347110127041 |
9 | 88061576233 |
10 | 31023214113 |
11 | 1217a882a31 |
12 | 6019740aa9 |
13 | 2c0536c638 |
14 | 17042ba093 |
15 | c18893693 |
hex | 73920ae21 |
31023214113 has 8 divisors (see below), whose sum is σ = 41592818176. Its totient is φ = 20567876400.
The previous prime is 31023214111. The next prime is 31023214129. The reversal of 31023214113 is 31141232013.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31023214113 - 21 = 31023214111 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 31023214113.
It is not an unprimeable number, because it can be changed into a prime (31023214111) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28565953 + ... + 28567038.
It is an arithmetic number, because the mean of its divisors is an integer number (5199102272).
Almost surely, 231023214113 is an apocalyptic number.
It is an amenable number.
31023214113 is a deficient number, since it is larger than the sum of its proper divisors (10569604063).
31023214113 is a wasteful number, since it uses less digits than its factorization.
31023214113 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57133175.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 31023214113 its reverse (31141232013), we get a palindrome (62164446126).
The spelling of 31023214113 in words is "thirty-one billion, twenty-three million, two hundred fourteen thousand, one hundred thirteen".
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