Base | Representation |
---|---|
bin | 11100111110010011… |
… | …101100111000001111 |
3 | 2222022010011222212122 |
4 | 130332103230320033 |
5 | 1002203142414043 |
6 | 22143005523155 |
7 | 2150636453060 |
oct | 347623547017 |
9 | 88263158778 |
10 | 31110123023 |
11 | 12214942981 |
12 | 60428734bb |
13 | 2c1a37b625 |
14 | 1711a60567 |
15 | c2130e368 |
hex | 73e4ece0f |
31110123023 has 4 divisors (see below), whose sum is σ = 35554426320. Its totient is φ = 26665819728.
The previous prime is 31110122993. The next prime is 31110123047. The reversal of 31110123023 is 32032101113.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32032101113 = 8803 ⋅3638771.
It is a cyclic number.
It is not a de Polignac number, because 31110123023 - 28 = 31110122767 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31110122992 and 31110123010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31110123053) 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, 2222151638 + ... + 2222151651.
It is an arithmetic number, because the mean of its divisors is an integer number (8888606580).
Almost surely, 231110123023 is an apocalyptic number.
31110123023 is a deficient number, since it is larger than the sum of its proper divisors (4444303297).
31110123023 is an equidigital number, since it uses as much as digits as its factorization.
31110123023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4444303296.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 31110123023 its reverse (32032101113), we get a palindrome (63142224136).
The spelling of 31110123023 in words is "thirty-one billion, one hundred ten million, one hundred twenty-three thousand, twenty-three".
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