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BaseRepresentation
bin101100000111…
…0111110111011
31121112010110021
41120032332323
521410130133
62143431311
7400413346
oct130167673
947463407
1023130043
1112068a42
1278b5537
134a3b021
14310145d
15206d52d
hex160efbb

23130043 has 4 divisors (see below), whose sum is σ = 23180040. Its totient is φ = 23080048.

The previous prime is 23130007. The next prime is 23130067. The reversal of 23130043 is 34003132.

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 23130043 - 29 = 23129531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23129999 and 23130026.

It is not an unprimeable number, because it can be changed into a prime (23130073) 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, 24298 + ... + 25231.

It is an arithmetic number, because the mean of its divisors is an integer number (5795010).

Almost surely, 223130043 is an apocalyptic number.

23130043 is a deficient number, since it is larger than the sum of its proper divisors (49997).

23130043 is an equidigital number, since it uses as much as digits as its factorization.

23130043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49996.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23130043 is about 4809.3703330062. The cubic root of 23130043 is about 284.9216692498.

Adding to 23130043 its reverse (34003132), we get a palindrome (57133175).

The spelling of 23130043 in words is "twenty-three million, one hundred thirty thousand, forty-three".

Divisors: 1 467 49529 23130043