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23693713 = 35367121
BaseRepresentation
bin101101001100…
…0100110010001
31122120202122221
41122120212101
522031144323
62203501041
7405251611
oct132304621
948522587
1023693713
111241348a
127b27781
134ba7764
14320aa41
15213055d
hex1698991

23693713 has 4 divisors (see below), whose sum is σ = 23761188. Its totient is φ = 23626240.

The previous prime is 23693701. The next prime is 23693717. The reversal of 23693713 is 31739632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10647169 + 13046544 = 3263^2 + 3612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23693713 is a prime.

It is a super-2 number, since 2×236937132 = 1122784071452738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23693717) 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, 33208 + ... + 33913.

It is an arithmetic number, because the mean of its divisors is an integer number (5940297).

Almost surely, 223693713 is an apocalyptic number.

It is an amenable number.

23693713 is a deficient number, since it is larger than the sum of its proper divisors (67475).

23693713 is an equidigital number, since it uses as much as digits as its factorization.

23693713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67474.

The product of its digits is 20412, while the sum is 34.

The square root of 23693713 is about 4867.6188223812. The cubic root of 23693713 is about 287.2175949021.

The spelling of 23693713 in words is "twenty-three million, six hundred ninety-three thousand, seven hundred thirteen".

Divisors: 1 353 67121 23693713