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23194045 = 573121377
BaseRepresentation
bin101100001111…
…0100110111101
31121122101020201
41120132212331
521414202140
62145043501
7401101060
oct130364675
947571221
1023194045
1112102036
127926591
134a611b4
14311a8d7
15208249a
hex161e9bd

23194045 has 16 divisors (see below), whose sum is σ = 32836608. Its totient is φ = 15390720.

The previous prime is 23194043. The next prime is 23194049. The reversal of 23194045 is 54049132.

It is not a de Polignac number, because 23194045 - 21 = 23194043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23194043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9604 + ... + 11773.

It is an arithmetic number, because the mean of its divisors is an integer number (2052288).

Almost surely, 223194045 is an apocalyptic number.

It is an amenable number.

23194045 is a deficient number, since it is larger than the sum of its proper divisors (9642563).

23194045 is a wasteful number, since it uses less digits than its factorization.

23194045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21420.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 23194045 is about 4816.0196220530. The cubic root of 23194045 is about 285.1842247916.

The spelling of 23194045 in words is "twenty-three million, one hundred ninety-four thousand, forty-five".

Divisors: 1 5 7 31 35 155 217 1085 21377 106885 149639 662687 748195 3313435 4638809 23194045