Search a number
-
+
23382191 = 717238543
BaseRepresentation
bin101100100110…
…0100010101111
31121222221100002
41121030202233
521441212231
62153054515
7402513440
oct131144257
947887302
1023382191
1112220428
1279b743b
134ac8a21
1431692c7
1520bd0cb
hex164c8af

23382191 has 16 divisors (see below), whose sum is σ = 29528064. Its totient is φ = 18040704.

The previous prime is 23382131. The next prime is 23382193. The reversal of 23382191 is 19128332.

It is a cyclic number.

It is not a de Polignac number, because 23382191 - 214 = 23365807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23382193) 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, 1535 + ... + 7008.

It is an arithmetic number, because the mean of its divisors is an integer number (1845504).

Almost surely, 223382191 is an apocalyptic number.

23382191 is a deficient number, since it is larger than the sum of its proper divisors (6145873).

23382191 is a wasteful number, since it uses less digits than its factorization.

23382191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8590.

The product of its digits is 2592, while the sum is 29.

The square root of 23382191 is about 4835.5135197826. The cubic root of 23382191 is about 285.9532704392.

The spelling of 23382191 in words is "twenty-three million, three hundred eighty-two thousand, one hundred ninety-one".

Divisors: 1 7 17 23 119 161 391 2737 8543 59801 145231 196489 1016617 1375423 3340313 23382191