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23075285 = 54615057
BaseRepresentation
bin101100000000…
…1100111010101
31121102100100012
41120001213111
521401402120
62142330005
7400064612
oct130014725
947370305
1023075285
1112030892
127889905
134a1c11c
1430c9509
15205c1c5
hex16019d5

23075285 has 4 divisors (see below), whose sum is σ = 27690348. Its totient is φ = 18460224.

The previous prime is 23075249. The next prime is 23075287. The reversal of 23075285 is 58257032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13845841 + 9229444 = 3721^2 + 3038^2 .

It is a cyclic number.

It is not a de Polignac number, because 23075285 - 212 = 23071189 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 (23075287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2307524 + ... + 2307533.

It is an arithmetic number, because the mean of its divisors is an integer number (6922587).

Almost surely, 223075285 is an apocalyptic number.

It is an amenable number.

23075285 is a deficient number, since it is larger than the sum of its proper divisors (4615063).

23075285 is an equidigital number, since it uses as much as digits as its factorization.

23075285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615062.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 23075285 is about 4803.6741146751. The cubic root of 23075285 is about 284.6966506622.

The spelling of 23075285 in words is "twenty-three million, seventy-five thousand, two hundred eighty-five".

Divisors: 1 5 4615057 23075285