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23270407 = 139167413
BaseRepresentation
bin101100011000…
…1010000000111
31121210020222221
41120301100013
521424123112
62150433211
7401536516
oct130612007
947706887
1023270407
1112154446
127962807
134a89b94
14313a67d
152099e07
hex1631407

23270407 has 4 divisors (see below), whose sum is σ = 23437960. Its totient is φ = 23102856.

The previous prime is 23270389. The next prime is 23270413. The reversal of 23270407 is 70407232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23270407 - 27 = 23270279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23270417) 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, 83568 + ... + 83845.

It is an arithmetic number, because the mean of its divisors is an integer number (5859490).

Almost surely, 223270407 is an apocalyptic number.

23270407 is a deficient number, since it is larger than the sum of its proper divisors (167553).

23270407 is a wasteful number, since it uses less digits than its factorization.

23270407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167552.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 23270407 is about 4823.9410236859. The cubic root of 23270407 is about 285.4968536330.

Adding to 23270407 its reverse (70407232), we get a palindrome (93677639).

The spelling of 23270407 in words is "twenty-three million, two hundred seventy thousand, four hundred seven".

Divisors: 1 139 167413 23270407