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23064289 = 83277883
BaseRepresentation
bin101011111111…
…0111011100001
31121101210020221
41113332323201
521401024124
62142203041
7400020553
oct127767341
947353227
1023064289
11120235a6
127883481
134a17111
1430c54d3
152058ce4
hex15feee1

23064289 has 4 divisors (see below), whose sum is σ = 23342256. Its totient is φ = 22786324.

The previous prime is 23064247. The next prime is 23064313. The reversal of 23064289 is 98246032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23064289 - 217 = 22933217 is a prime.

It is a super-2 number, since 2×230642892 = 1063922854151042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23064229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138859 + ... + 139024.

It is an arithmetic number, because the mean of its divisors is an integer number (5835564).

Almost surely, 223064289 is an apocalyptic number.

It is an amenable number.

23064289 is a deficient number, since it is larger than the sum of its proper divisors (277967).

23064289 is an equidigital number, since it uses as much as digits as its factorization.

23064289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277966.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 23064289 is about 4802.5294377026. The cubic root of 23064289 is about 284.6514215818.

The spelling of 23064289 in words is "twenty-three million, sixty-four thousand, two hundred eighty-nine".

Divisors: 1 83 277883 23064289