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23093431 = 33616871
BaseRepresentation
bin101100000011…
…0000010110111
31121110021020021
41120012002313
521402442211
62142550011
7400201534
oct130060267
947407207
1023093431
1112043489
127898307
134a2746a
1430d1d8b
152062771
hex16060b7

23093431 has 4 divisors (see below), whose sum is σ = 23103664. Its totient is φ = 23083200.

The previous prime is 23093407. The next prime is 23093443. The reversal of 23093431 is 13439032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23093431 is a prime.

It is a super-2 number, since 2×230934312 = 1066613110703522, 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 = 23093396 and 23093405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23093491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75 + ... + 6796.

It is an arithmetic number, because the mean of its divisors is an integer number (5775916).

Almost surely, 223093431 is an apocalyptic number.

23093431 is a deficient number, since it is larger than the sum of its proper divisors (10233).

23093431 is an equidigital number, since it uses as much as digits as its factorization.

23093431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 23093431 is about 4805.5625060965. The cubic root of 23093431 is about 284.7712579290.

The spelling of 23093431 in words is "twenty-three million, ninety-three thousand, four hundred thirty-one".

Divisors: 1 3361 6871 23093431