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23115245 = 59834703
BaseRepresentation
bin101100000101…
…1010111101101
31121111101011012
41120023113231
521404141440
62143235005
7400322246
oct130132755
947441135
1023115245
111205890a
1278a8a65
134a3437a
1430d9ccd
152068e65
hex160b5ed

23115245 has 8 divisors (see below), whose sum is σ = 27772416. Its totient is φ = 18469456.

The previous prime is 23115241. The next prime is 23115247. The reversal of 23115245 is 54251132.

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 23115245 - 22 = 23115241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23115245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23115241) 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, 2564 + ... + 7266.

It is an arithmetic number, because the mean of its divisors is an integer number (3471552).

Almost surely, 223115245 is an apocalyptic number.

It is an amenable number.

23115245 is a deficient number, since it is larger than the sum of its proper divisors (4657171).

23115245 is an equidigital number, since it uses as much as digits as its factorization.

23115245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5691.

The product of its digits is 1200, while the sum is 23.

The square root of 23115245 is about 4807.8316318274. The cubic root of 23115245 is about 284.8608944625.

Adding to 23115245 its reverse (54251132), we get a palindrome (77366377).

The spelling of 23115245 in words is "twenty-three million, one hundred fifteen thousand, two hundred forty-five".

Divisors: 1 5 983 4703 4915 23515 4623049 23115245