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23108313 = 3193710957
BaseRepresentation
bin101100000100…
…1101011011001
31121111000122110
41120021223121
521403431223
62143142533
7400263114
oct130115331
947430573
1023108313
1112053688
1278a4a49
134a31177
1430d757b
152066d93
hex1609ad9

23108313 has 16 divisors (see below), whose sum is σ = 33312320. Its totient is φ = 14198976.

The previous prime is 23108311. The next prime is 23108317. The reversal of 23108313 is 31380132.

It is a happy number.

It is not a de Polignac number, because 23108313 - 21 = 23108311 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23108313.

It is not an unprimeable number, because it can be changed into a prime (23108311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3370 + ... + 7587.

It is an arithmetic number, because the mean of its divisors is an integer number (2082020).

Almost surely, 223108313 is an apocalyptic number.

It is an amenable number.

23108313 is a deficient number, since it is larger than the sum of its proper divisors (10204007).

23108313 is a wasteful number, since it uses less digits than its factorization.

23108313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11016.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 23108313 is about 4807.1106706628. The cubic root of 23108313 is about 284.8324160976.

Adding to 23108313 its reverse (31380132), we get a palindrome (54488445).

The spelling of 23108313 in words is "twenty-three million, one hundred eight thousand, three hundred thirteen".

Divisors: 1 3 19 37 57 111 703 2109 10957 32871 208183 405409 624549 1216227 7702771 23108313