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23148149 = 411513739
BaseRepresentation
bin101100001001…
…1011001110101
31121120001021212
41120103121311
521411220044
62144051205
7400520213
oct130233165
947501255
1023148149
1112080602
127903b05
134a4633b
143107cb3
152073a9e
hex1613675

23148149 has 8 divisors (see below), whose sum is σ = 23876160. Its totient is φ = 22428000.

The previous prime is 23148131. The next prime is 23148161. The reversal of 23148149 is 94184132.

It is a happy number.

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 23148149 - 224 = 6370933 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 (23148109) 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, 4322 + ... + 8060.

It is an arithmetic number, because the mean of its divisors is an integer number (2984520).

Almost surely, 223148149 is an apocalyptic number.

It is an amenable number.

23148149 is a deficient number, since it is larger than the sum of its proper divisors (728011).

23148149 is a wasteful number, since it uses less digits than its factorization.

23148149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931.

The product of its digits is 6912, while the sum is 32.

The square root of 23148149 is about 4811.2523317739. The cubic root of 23148149 is about 284.9959946087.

The spelling of 23148149 in words is "twenty-three million, one hundred forty-eight thousand, one hundred forty-nine".

Divisors: 1 41 151 3739 6191 153299 564589 23148149