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23630949 = 324435927
BaseRepresentation
bin101101000100…
…1010001100101
31122110120120100
41122021101211
522022142244
62202254313
7404600616
oct132112145
948416510
1023630949
1112380311
127ab7399
134b85014
1431d1c0d
15211bb69
hex1689465

23630949 has 12 divisors (see below), whose sum is σ = 34216416. Its totient is φ = 15715752.

The previous prime is 23630941. The next prime is 23630963. The reversal of 23630949 is 94903632.

It is a happy number.

It is not a de Polignac number, because 23630949 - 23 = 23630941 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23630941) 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 11 ways as a sum of consecutive naturals, for example, 1024 + ... + 6950.

It is an arithmetic number, because the mean of its divisors is an integer number (2851368).

Almost surely, 223630949 is an apocalyptic number.

It is an amenable number.

23630949 is a deficient number, since it is larger than the sum of its proper divisors (10585467).

23630949 is a wasteful number, since it uses less digits than its factorization.

23630949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6376 (or 6373 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 23630949 is about 4861.1674523719. The cubic root of 23630949 is about 286.9637601091.

The spelling of 23630949 in words is "twenty-three million, six hundred thirty thousand, nine hundred forty-nine".

Divisors: 1 3 9 443 1329 3987 5927 17781 53343 2625661 7876983 23630949