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23693093 = 23939901
BaseRepresentation
bin101101001100…
…0011100100101
31122120201210222
41122120130211
522031134333
62203454125
7405250034
oct132303445
948521728
1023693093
1112412a76
127b27345
134ba73a8
14320a71b
152130298
hex1698725

23693093 has 4 divisors (see below), whose sum is σ = 23705388. Its totient is φ = 23680800.

The previous prime is 23693051. The next prime is 23693113. The reversal of 23693093 is 39039632.

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 can be written as a sum of positive squares in 2 ways, for example, as 11175649 + 12517444 = 3343^2 + 3538^2 .

It is a cyclic number.

It is not a de Polignac number, because 23693093 - 218 = 23430949 is a prime.

It is a super-2 number, since 2×236930932 = 1122725311813298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23693023) 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, 2558 + ... + 7343.

It is an arithmetic number, because the mean of its divisors is an integer number (5926347).

Almost surely, 223693093 is an apocalyptic number.

It is an amenable number.

23693093 is a deficient number, since it is larger than the sum of its proper divisors (12295).

23693093 is an equidigital number, since it uses as much as digits as its factorization.

23693093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12294.

The product of its (nonzero) digits is 26244, while the sum is 35.

The square root of 23693093 is about 4867.5551357946. Note that the first 3 decimals coincide. The cubic root of 23693093 is about 287.2150896459.

The spelling of 23693093 in words is "twenty-three million, six hundred ninety-three thousand, ninety-three".

Divisors: 1 2393 9901 23693093