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23693889 = 331254773
BaseRepresentation
bin101101001100…
…0101001000001
31122120202220110
41122120221001
522031201024
62203501533
7405252252
oct132305101
948522813
1023693889
111241362a
127b278a9
134ba786b
14320ab29
152130629
hex1698a41

23693889 has 8 divisors (see below), whose sum is σ = 32611072. Its totient is φ = 15286320.

The previous prime is 23693881. The next prime is 23693897. The reversal of 23693889 is 98839632.

It is an interprime number because it is at equal distance from previous prime (23693881) and next prime (23693897).

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

It is not a de Polignac number, because 23693889 - 23 = 23693881 is a prime.

It is a super-2 number, since 2×236938892 = 1122800751888642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23693881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127294 + ... + 127479.

It is an arithmetic number, because the mean of its divisors is an integer number (4076384).

Almost surely, 223693889 is an apocalyptic number.

It is an amenable number.

23693889 is a deficient number, since it is larger than the sum of its proper divisors (8917183).

23693889 is a wasteful number, since it uses less digits than its factorization.

23693889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254807.

The product of its digits is 559872, while the sum is 48.

The square root of 23693889 is about 4867.6369010024. The cubic root of 23693889 is about 287.2183060636.

The spelling of 23693889 in words is "twenty-three million, six hundred ninety-three thousand, eight hundred eighty-nine".

Divisors: 1 3 31 93 254773 764319 7897963 23693889