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23079145 = 54615829
BaseRepresentation
bin101100000001…
…0100011101001
31121102112122011
41120002203221
521402013040
62142355521
7400112065
oct130024351
947375564
1023079145
1112033781
12788bba1
134a20acb
1430caaa5
15205d3ea
hex16028e9

23079145 has 4 divisors (see below), whose sum is σ = 27694980. Its totient is φ = 18463312.

The previous prime is 23079127. The next prime is 23079163. The reversal of 23079145 is 54197032.

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

It is an interprime number because it is at equal distance from previous prime (23079127) and next prime (23079163).

It can be written as a sum of positive squares in 2 ways, for example, as 8433216 + 14645929 = 2904^2 + 3827^2 .

It is a cyclic number.

It is not a de Polignac number, because 23079145 - 29 = 23078633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2307910 + ... + 2307919.

It is an arithmetic number, because the mean of its divisors is an integer number (6923745).

Almost surely, 223079145 is an apocalyptic number.

It is an amenable number.

23079145 is a deficient number, since it is larger than the sum of its proper divisors (4615835).

23079145 is an equidigital number, since it uses as much as digits as its factorization.

23079145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4615834.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 23079145 is about 4804.0758736723. The cubic root of 23079145 is about 284.7125243239.

The spelling of 23079145 in words is "twenty-three million, seventy-nine thousand, one hundred forty-five".

Divisors: 1 5 4615829 23079145