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23630638 = 279149561
BaseRepresentation
bin101101000100…
…1001100101110
31122110120010211
41122021030232
522022140023
62202253034
7404566663
oct132111456
948416124
1023630638
1112380059
127ab717a
134b84b35
1431d1a6a
15211ba0d
hex168932e

23630638 has 8 divisors (see below), whose sum is σ = 35894880. Its totient is φ = 11665680.

The previous prime is 23630609. The next prime is 23630639. The reversal of 23630638 is 83603632.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23630639) 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, 74623 + ... + 74938.

It is an arithmetic number, because the mean of its divisors is an integer number (4486860).

Almost surely, 223630638 is an apocalyptic number.

23630638 is a deficient number, since it is larger than the sum of its proper divisors (12264242).

23630638 is a wasteful number, since it uses less digits than its factorization.

23630638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149642.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 23630638 is about 4861.1354640660. The cubic root of 23630638 is about 286.9625012215.

The spelling of 23630638 in words is "twenty-three million, six hundred thirty thousand, six hundred thirty-eight".

Divisors: 1 2 79 158 149561 299122 11815319 23630638