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23054819 = 79728927
BaseRepresentation
bin101011111110…
…0100111100011
31121101022021012
41113330213203
521400223234
62142051135
7366651134
oct127744743
947338235
1023054819
1112017477
127879aab
134a12a08
1430c1c8b
1520560ce
hex15fc9e3

23054819 has 4 divisors (see below), whose sum is σ = 23084544. Its totient is φ = 23025096.

The previous prime is 23054813. The next prime is 23054849. The reversal of 23054819 is 91845032.

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 23054819 - 212 = 23050723 is a prime.

It is a super-2 number, since 2×230548192 = 1063049358245522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23054813) 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, 13667 + ... + 15260.

It is an arithmetic number, because the mean of its divisors is an integer number (5771136).

Almost surely, 223054819 is an apocalyptic number.

23054819 is a deficient number, since it is larger than the sum of its proper divisors (29725).

23054819 is an equidigital number, since it uses as much as digits as its factorization.

23054819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29724.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 23054819 is about 4801.5433977004. The cubic root of 23054819 is about 284.6124577680.

The spelling of 23054819 in words is "twenty-three million, fifty-four thousand, eight hundred nineteen".

Divisors: 1 797 28927 23054819