Search a number
-
+
23380917 = 375212137
BaseRepresentation
bin101100100110…
…0001110110101
31121222212120220
41121030032311
521441142132
62153044553
7402506640
oct131141665
947885526
1023380917
111221a47a
1279b6759
134ac8281
143168a57
1520bca2c
hex164c3b5

23380917 has 16 divisors (see below), whose sum is σ = 35713152. Its totient is φ = 13328640.

The previous prime is 23380879. The next prime is 23380921. The reversal of 23380917 is 71908332.

It is not a de Polignac number, because 23380917 - 26 = 23380853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23380937) 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, 9873 + ... + 12009.

It is an arithmetic number, because the mean of its divisors is an integer number (2232072).

Almost surely, 223380917 is an apocalyptic number.

It is an amenable number.

23380917 is a deficient number, since it is larger than the sum of its proper divisors (12332235).

23380917 is a wasteful number, since it uses less digits than its factorization.

23380917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 23380917 is about 4835.3817843062. The cubic root of 23380917 is about 285.9480768699.

The spelling of 23380917 in words is "twenty-three million, three hundred eighty thousand, nine hundred seventeen".

Divisors: 1 3 7 21 521 1563 2137 3647 6411 10941 14959 44877 1113377 3340131 7793639 23380917