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23697813 = 317464663
BaseRepresentation
bin101101001100…
…1100110010101
31122120222021210
41122121212111
522031312223
62203532033
7405266556
oct132314625
948528253
1023697813
1112416577
127b2a019
134ba9599
14320c32d
152131893
hex1699995

23697813 has 8 divisors (see below), whose sum is σ = 33455808. Its totient is φ = 14869184.

The previous prime is 23697811. The next prime is 23697827. The reversal of 23697813 is 31879632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23697813 - 21 = 23697811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23697811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232281 + ... + 232382.

It is an arithmetic number, because the mean of its divisors is an integer number (4181976).

Almost surely, 223697813 is an apocalyptic number.

It is an amenable number.

23697813 is a deficient number, since it is larger than the sum of its proper divisors (9757995).

23697813 is a wasteful number, since it uses less digits than its factorization.

23697813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464683.

The product of its digits is 54432, while the sum is 39.

The square root of 23697813 is about 4868.0399546429. The cubic root of 23697813 is about 287.2341608187.

The spelling of 23697813 in words is "twenty-three million, six hundred ninety-seven thousand, eight hundred thirteen".

Divisors: 1 3 17 51 464663 1393989 7899271 23697813