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23148619 = 131780663
BaseRepresentation
bin101100001001…
…1100001001011
31121120001221021
41120103201023
521411223434
62144053311
7400521454
oct130234113
947501837
1023148619
111208099a
127904237
134a46610
14310812b
152073cb4
hex161384b

23148619 has 4 divisors (see below), whose sum is σ = 24929296. Its totient is φ = 21367944.

The previous prime is 23148607. The next prime is 23148703. The reversal of 23148619 is 91684132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23148619 - 213 = 23140427 is a prime.

It is a super-2 number, since 2×231486192 = 1071717123214322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23142619) 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 3 ways as a sum of consecutive naturals, for example, 890319 + ... + 890344.

It is an arithmetic number, because the mean of its divisors is an integer number (6232324).

Almost surely, 223148619 is an apocalyptic number.

23148619 is a deficient number, since it is larger than the sum of its proper divisors (1780677).

23148619 is a wasteful number, since it uses less digits than its factorization.

23148619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780676.

The product of its digits is 10368, while the sum is 34.

The square root of 23148619 is about 4811.3011753579. The cubic root of 23148619 is about 284.9979234485.

The spelling of 23148619 in words is "twenty-three million, one hundred forty-eight thousand, six hundred nineteen".

Divisors: 1 13 1780663 23148619