Search a number
-
+
23680265 = 57719941
BaseRepresentation
bin101101001010…
…1010100001001
31122120002012212
41122111110021
522030232030
62203314505
7405164450
oct132252411
948502185
1023680265
1112404374
127b1ba35
134ba15bb
143205b97
15212b595
hex1695509

23680265 has 16 divisors (see below), whose sum is σ = 32555520. Its totient is φ = 16198080.

The previous prime is 23680243. The next prime is 23680291. The reversal of 23680265 is 56208632.

It is not a de Polignac number, because 23680265 - 210 = 23679241 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24695 + ... + 25635.

It is an arithmetic number, because the mean of its divisors is an integer number (2034720).

Almost surely, 223680265 is an apocalyptic number.

It is an amenable number.

23680265 is a deficient number, since it is larger than the sum of its proper divisors (8875255).

23680265 is an equidigital number, since it uses as much as digits as its factorization.

23680265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 23680265 is about 4866.2372527447. The cubic root of 23680265 is about 287.1632452777.

Adding to 23680265 its reverse (56208632), we get a palindrome (79888897).

The spelling of 23680265 in words is "twenty-three million, six hundred eighty thousand, two hundred sixty-five".

Divisors: 1 5 7 35 719 941 3595 4705 5033 6587 25165 32935 676579 3382895 4736053 23680265