Base | Representation |
---|---|
bin | 101100100100… |
… | …1111001111111 |
3 | 1121222101112002 |
4 | 1121021321333 |
5 | 21440341031 |
6 | 2152532515 |
7 | 402440111 |
oct | 131117177 |
9 | 47871462 |
10 | 23371391 |
11 | 122132aa |
12 | 79b113b |
13 | 4ac3b34 |
14 | 31653b1 |
15 | 20b9ccb |
hex | 1649e7f |
23371391 has 2 divisors, whose sum is σ = 23371392. Its totient is φ = 23371390.
The previous prime is 23371373. The next prime is 23371393. The reversal of 23371391 is 19317332.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 23371391 - 210 = 23370367 is a prime.
Together with 23371393, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23371393) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11685695 + 11685696.
It is an arithmetic number, because the mean of its divisors is an integer number (11685696).
Almost surely, 223371391 is an apocalyptic number.
23371391 is a deficient number, since it is larger than the sum of its proper divisors (1).
23371391 is an equidigital number, since it uses as much as digits as its factorization.
23371391 is an evil number, because the sum of its binary digits is even.
The product of its digits is 3402, while the sum is 29.
The square root of 23371391 is about 4834.3966531512. The cubic root of 23371391 is about 285.9092373411.
The spelling of 23371391 in words is "twenty-three million, three hundred seventy-one thousand, three hundred ninety-one".
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