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23115323 = 711317947
BaseRepresentation
bin101100000101…
…1011000111011
31121111101021002
41120023120323
521404142243
62143235215
7400322420
oct130133073
947441232
1023115323
1112058980
1278a8b0b
134a3440a
1430d9d47
152068eb8
hex160b63b

23115323 has 16 divisors (see below), whose sum is σ = 28940544. Its totient is φ = 17936160.

The previous prime is 23115319. The next prime is 23115331. The reversal of 23115323 is 32351132.

It is not a de Polignac number, because 23115323 - 22 = 23115319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23115295 and 23115304.

It is not an unprimeable number, because it can be changed into a prime (23115353) 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 15 ways as a sum of consecutive naturals, for example, 23936 + ... + 24882.

It is an arithmetic number, because the mean of its divisors is an integer number (1808784).

Almost surely, 223115323 is an apocalyptic number.

23115323 is a deficient number, since it is larger than the sum of its proper divisors (5825221).

23115323 is a wasteful number, since it uses less digits than its factorization.

23115323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282.

The product of its digits is 540, while the sum is 20.

The square root of 23115323 is about 4807.8397435855. The cubic root of 23115323 is about 284.8612148733.

Adding to 23115323 its reverse (32351132), we get a palindrome (55466455).

The spelling of 23115323 in words is "twenty-three million, one hundred fifteen thousand, three hundred twenty-three".

Divisors: 1 7 11 77 317 947 2219 3487 6629 10417 24409 72919 300199 2101393 3302189 23115323