Base | Representation |
---|---|
bin | 101101001110… |
… | …1010100000111 |
3 | 1122121202011102 |
4 | 1122131110013 |
5 | 22032304111 |
6 | 2204130315 |
7 | 405362126 |
oct | 132352407 |
9 | 48552142 |
10 | 23713031 |
11 | 12426a51 |
12 | 7b3699b |
13 | 4bb34a4 |
14 | 3213abd |
15 | 213613b |
hex | 169d507 |
23713031 has 2 divisors, whose sum is σ = 23713032. Its totient is φ = 23713030.
The previous prime is 23713013. The next prime is 23713033. The reversal of 23713031 is 13031732.
It is a happy number.
Together with previous prime (23713013) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 23713031 - 222 = 19518727 is a prime.
It is a super-2 number, since 2×237130312 = 1124615678413922, which contains 22 as substring.
Together with 23713033, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 23712994 and 23713012.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23713033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11856515 + 11856516.
It is an arithmetic number, because the mean of its divisors is an integer number (11856516).
Almost surely, 223713031 is an apocalyptic number.
23713031 is a deficient number, since it is larger than the sum of its proper divisors (1).
23713031 is an equidigital number, since it uses as much as digits as its factorization.
23713031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 378, while the sum is 20.
The square root of 23713031 is about 4869.6027558724. The cubic root of 23713031 is about 287.2956319500.
Adding to 23713031 its reverse (13031732), we get a palindrome (36744763).
The spelling of 23713031 in words is "twenty-three million, seven hundred thirteen thousand, thirty-one".
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