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23130713 = 61737489
BaseRepresentation
bin101100000111…
…1001001011001
31121112011101002
41120033021121
521410140323
62143434345
7400415324
oct130171131
947464332
1023130713
11120694a1
1278b59b5
134a3b418
1431017bb
15206d828
hex160f259

23130713 has 4 divisors (see below), whose sum is σ = 23168820. Its totient is φ = 23092608.

The previous prime is 23130703. The next prime is 23130739. The reversal of 23130713 is 31703132.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10549504 + 12581209 = 3248^2 + 3547^2 .

It is a cyclic number.

It is not a de Polignac number, because 23130713 - 26 = 23130649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23130703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18128 + ... + 19361.

It is an arithmetic number, because the mean of its divisors is an integer number (5792205).

Almost surely, 223130713 is an apocalyptic number.

It is an amenable number.

23130713 is a deficient number, since it is larger than the sum of its proper divisors (38107).

23130713 is an equidigital number, since it uses as much as digits as its factorization.

23130713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38106.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 23130713 is about 4809.4399881899. The cubic root of 23130713 is about 284.9244202993.

Adding to 23130713 its reverse (31703132), we get a palindrome (54833845).

The spelling of 23130713 in words is "twenty-three million, one hundred thirty thousand, seven hundred thirteen".

Divisors: 1 617 37489 23130713