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23148613 = 193277433
BaseRepresentation
bin101100001001…
…1100001000101
31121120001221001
41120103201011
521411223423
62144053301
7400521445
oct130234105
947501831
1023148613
1112080994
127904231
134a46607
143108125
152073cad
hex1613845

23148613 has 8 divisors (see below), whose sum is σ = 23406488. Its totient is φ = 22892544.

The previous prime is 23148607. The next prime is 23148703. The reversal of 23148613 is 31684132.

It can be written as a sum of positive squares in 4 ways, for example, as 471969 + 22676644 = 687^2 + 4762^2 .

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 23148613 - 221 = 21051461 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 (23148113) 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, 53245 + ... + 53677.

It is an arithmetic number, because the mean of its divisors is an integer number (2925811).

Almost surely, 223148613 is an apocalyptic number.

It is an amenable number.

23148613 is a deficient number, since it is larger than the sum of its proper divisors (257875).

23148613 is a wasteful number, since it uses less digits than its factorization.

23148613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903.

The product of its digits is 3456, while the sum is 28.

The square root of 23148613 is about 4811.3005518259. The cubic root of 23148613 is about 284.9978988252.

The spelling of 23148613 in words is "twenty-three million, one hundred forty-eight thousand, six hundred thirteen".

Divisors: 1 193 277 433 53461 83569 119941 23148613