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23116261 = 712292687
BaseRepresentation
bin101100000101…
…1100111100101
31121111102112211
41120023213211
521404210021
62143243421
7400325230
oct130134745
947442484
1023116261
1112059653
1278a9571
134a3497c
1430da417
1520693e1
hex160b9e5

23116261 has 8 divisors (see below), whose sum is σ = 26449920. Its totient is φ = 19790448.

The previous prime is 23116213. The next prime is 23116267. The reversal of 23116261 is 16261132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23116261 - 213 = 23108069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23116267) 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 7 ways as a sum of consecutive naturals, for example, 7260 + ... + 9946.

It is an arithmetic number, because the mean of its divisors is an integer number (3306240).

Almost surely, 223116261 is an apocalyptic number.

It is an amenable number.

23116261 is a deficient number, since it is larger than the sum of its proper divisors (3333659).

23116261 is a wasteful number, since it uses less digits than its factorization.

23116261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923.

The product of its digits is 432, while the sum is 22.

The square root of 23116261 is about 4807.9372916044. The cubic root of 23116261 is about 284.8650679625.

Adding to 23116261 its reverse (16261132), we get a palindrome (39377393).

The spelling of 23116261 in words is "twenty-three million, one hundred sixteen thousand, two hundred sixty-one".

Divisors: 1 7 1229 2687 8603 18809 3302323 23116261