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23240827 = 81128657
BaseRepresentation
bin101100010101…
…0000001111011
31121201202102101
41120222001323
521422201302
62150044231
7401354341
oct130520173
947652371
1023240827
11121341a5
127949677
134a7958c
14312d991
152091287
hex162a07b

23240827 has 4 divisors (see below), whose sum is σ = 23270296. Its totient is φ = 23211360.

The previous prime is 23240797. The next prime is 23240831. The reversal of 23240827 is 72804232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23240827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23240795 and 23240804.

It is not an unprimeable number, because it can be changed into a prime (23240227) 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, 13518 + ... + 15139.

It is an arithmetic number, because the mean of its divisors is an integer number (5817574).

Almost surely, 223240827 is an apocalyptic number.

23240827 is a deficient number, since it is larger than the sum of its proper divisors (29469).

23240827 is an equidigital number, since it uses as much as digits as its factorization.

23240827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29468.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 23240827 is about 4820.8740908678. The cubic root of 23240827 is about 285.3758332927.

The spelling of 23240827 in words is "twenty-three million, two hundred forty thousand, eight hundred twenty-seven".

Divisors: 1 811 28657 23240827