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23093231 = 73299033
BaseRepresentation
bin101100000010…
…1111111101111
31121110020221212
41120011333233
521402440411
62142545035
7400201130
oct130057757
947406855
1023093231
1112043317
12789817b
134a27345
1430d1c87
15206268b
hex1605fef

23093231 has 4 divisors (see below), whose sum is σ = 26392272. Its totient is φ = 19794192.

The previous prime is 23093207. The next prime is 23093243. The reversal of 23093231 is 13239032.

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 23093231 - 218 = 22831087 is a prime.

It is a super-2 number, since 2×230932312 = 1066594636038722, 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 = 23093197 and 23093206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23093281) 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, 1649510 + ... + 1649523.

It is an arithmetic number, because the mean of its divisors is an integer number (6598068).

Almost surely, 223093231 is an apocalyptic number.

23093231 is a deficient number, since it is larger than the sum of its proper divisors (3299041).

23093231 is an equidigital number, since it uses as much as digits as its factorization.

23093231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299040.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 23093231 is about 4805.5416968329. The cubic root of 23093231 is about 284.7704358422.

The spelling of 23093231 in words is "twenty-three million, ninety-three thousand, two hundred thirty-one".

Divisors: 1 7 3299033 23093231