Search a number
-
+
23308117 = 7191731013
BaseRepresentation
bin101100011101…
…0011101010101
31121212011201121
41120322131111
521431324432
62151323541
7402054460
oct130723525
947764647
1023308117
111217a808
1279805b1
134aa10b1
14314a2d7
1520a6197
hex163a755

23308117 has 16 divisors (see below), whose sum is σ = 28229760. Its totient is φ = 18798912.

The previous prime is 23308069. The next prime is 23308157. The reversal of 23308117 is 71180332.

It is a cyclic number.

It is not a de Polignac number, because 23308117 - 27 = 23307989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23308091 and 23308100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23308157) 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, 22503 + ... + 23515.

It is an arithmetic number, because the mean of its divisors is an integer number (1764360).

Almost surely, 223308117 is an apocalyptic number.

It is an amenable number.

23308117 is a deficient number, since it is larger than the sum of its proper divisors (4921643).

23308117 is a wasteful number, since it uses less digits than its factorization.

23308117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 23308117 is about 4827.8480713461. The cubic root of 23308117 is about 285.6509875373.

Adding to 23308117 its reverse (71180332), we get a palindrome (94488449).

The spelling of 23308117 in words is "twenty-three million, three hundred eight thousand, one hundred seventeen".

Divisors: 1 7 19 133 173 1013 1211 3287 7091 19247 23009 134729 175249 1226743 3329731 23308117