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23149927 = 611312897
BaseRepresentation
bin101100001001…
…1110101100111
31121120010201201
41120103311213
521411244202
62144103331
7400525333
oct130236547
947503651
1023149927
1112081979
127904b47
134a470a8
1431087c3
152074387
hex1613d67

23149927 has 8 divisors (see below), whose sum is σ = 23717232. Its totient is φ = 22588800.

The previous prime is 23149921. The next prime is 23149933. The reversal of 23149927 is 72994132.

It is an interprime number because it is at equal distance from previous prime (23149921) and next prime (23149933).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23149927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23149921) 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, 6543 + ... + 9439.

It is an arithmetic number, because the mean of its divisors is an integer number (2964654).

Almost surely, 223149927 is an apocalyptic number.

23149927 is a deficient number, since it is larger than the sum of its proper divisors (567305).

23149927 is a wasteful number, since it uses less digits than its factorization.

23149927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089.

The product of its digits is 27216, while the sum is 37.

The square root of 23149927 is about 4811.4371034027. The cubic root of 23149927 is about 285.0032912311.

The spelling of 23149927 in words is "twenty-three million, one hundred forty-nine thousand, nine hundred twenty-seven".

Divisors: 1 61 131 2897 7991 176717 379507 23149927