Base | Representation |
---|---|
bin | 11100111000010110… |
… | …111100011111101011 |
3 | 2222001011100222022120 |
4 | 130320112330133223 |
5 | 1002002114410443 |
6 | 22125042322323 |
7 | 2145315200262 |
oct | 347026743753 |
9 | 88034328276 |
10 | 31010310123 |
11 | 12173569a81 |
12 | 60153593a3 |
13 | 2c027a2040 |
14 | 17026bb5d9 |
15 | c17695083 |
hex | 7385bc7eb |
31010310123 has 32 divisors (see below), whose sum is σ = 45452365056. Its totient is φ = 18688295808.
The previous prime is 31010310103. The next prime is 31010310127. The reversal of 31010310123 is 32101301013.
It is not a de Polignac number, because 31010310123 - 26 = 31010310059 is a prime.
It is not an unprimeable number, because it can be changed into a prime (31010310127) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1116936 + ... + 1144362.
It is an arithmetic number, because the mean of its divisors is an integer number (1420386408).
Almost surely, 231010310123 is an apocalyptic number.
31010310123 is a deficient number, since it is larger than the sum of its proper divisors (14442054933).
31010310123 is a wasteful number, since it uses less digits than its factorization.
31010310123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28043.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 31010310123 its reverse (32101301013), we get a palindrome (63111611136).
The spelling of 31010310123 in words is "thirty-one billion, ten million, three hundred ten thousand, one hundred twenty-three".
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