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23235031 = 127182953
BaseRepresentation
bin101100010100…
…0100111010111
31121201110110201
41120220213113
521422010111
62150001331
7401331421
oct130504727
947643421
1023235031
111212a906
127946247
134a76a51
14312b811
15208e6c1
hex16289d7

23235031 has 4 divisors (see below), whose sum is σ = 23418112. Its totient is φ = 23051952.

The previous prime is 23235019. The next prime is 23235053. The reversal of 23235031 is 13053232.

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 23235031 - 25 = 23234999 is a prime.

It is a super-2 number, since 2×232350312 = 1079733331141922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23235011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91350 + ... + 91603.

It is an arithmetic number, because the mean of its divisors is an integer number (5854528).

Almost surely, 223235031 is an apocalyptic number.

23235031 is a deficient number, since it is larger than the sum of its proper divisors (183081).

23235031 is a wasteful number, since it uses less digits than its factorization.

23235031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183080.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 23235031 is about 4820.2729175846. The cubic root of 23235031 is about 285.3521081495.

Adding to 23235031 its reverse (13053232), we get a palindrome (36288263).

The spelling of 23235031 in words is "twenty-three million, two hundred thirty-five thousand, thirty-one".

Divisors: 1 127 182953 23235031