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23041931 = 112094721
BaseRepresentation
bin101011111100…
…1011110001011
31121100122120212
41113321132023
521344320211
62141511335
7366565433
oct127713613
947318525
1023041931
1112008820
12787254b
134a09ba3
1430bb2c3
15205238b
hex15f978b

23041931 has 4 divisors (see below), whose sum is σ = 25136664. Its totient is φ = 20947200.

The previous prime is 23041873. The next prime is 23041933. The reversal of 23041931 is 13914032.

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 23041931 - 26 = 23041867 is a prime.

It is a super-2 number, since 2×230419312 = 1061861168417522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23041897 and 23041906.

It is not an unprimeable number, because it can be changed into a prime (23041933) 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, 1047350 + ... + 1047371.

It is an arithmetic number, because the mean of its divisors is an integer number (6284166).

Almost surely, 223041931 is an apocalyptic number.

23041931 is a deficient number, since it is larger than the sum of its proper divisors (2094733).

23041931 is a wasteful number, since it uses less digits than its factorization.

23041931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094732.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 23041931 is about 4800.2011416190. The cubic root of 23041931 is about 284.5594136290.

Adding to 23041931 its reverse (13914032), we get a palindrome (36955963).

The spelling of 23041931 in words is "twenty-three million, forty-one thousand, nine hundred thirty-one".

Divisors: 1 11 2094721 23041931