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23090193 = 327366511
BaseRepresentation
bin101100000010…
…1010000010001
31121110002210100
41120011100101
521402341233
62142523013
7400156230
oct130052021
947402710
1023090193
1112041005
127896469
134a25b49
1430d0b17
152061813
hex1605411

23090193 has 12 divisors (see below), whose sum is σ = 38117248. Its totient is φ = 13194360.

The previous prime is 23090167. The next prime is 23090201. The reversal of 23090193 is 39109032.

It is not a de Polignac number, because 23090193 - 25 = 23090161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23090693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183193 + ... + 183318.

Almost surely, 223090193 is an apocalyptic number.

It is an amenable number.

23090193 is a deficient number, since it is larger than the sum of its proper divisors (15027055).

23090193 is a wasteful number, since it uses less digits than its factorization.

23090193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366524 (or 366521 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 23090193 is about 4805.2255930393. The cubic root of 23090193 is about 284.7579477597.

The spelling of 23090193 in words is "twenty-three million, ninety thousand, one hundred ninety-three".

Divisors: 1 3 7 9 21 63 366511 1099533 2565577 3298599 7696731 23090193