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23116169 = 41563809
BaseRepresentation
bin101100000101…
…1100110001001
31121111102102102
41120023212021
521404204134
62143243145
7400325036
oct130134611
947442372
1023116169
111205957a
1278a94b5
134a3490b
1430da38d
15206937e
hex160b989

23116169 has 4 divisors (see below), whose sum is σ = 23680020. Its totient is φ = 22552320.

The previous prime is 23116123. The next prime is 23116193. The reversal of 23116169 is 96161132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4080400 + 19035769 = 2020^2 + 4363^2 .

It is a cyclic number.

It is not a de Polignac number, because 23116169 - 212 = 23112073 is a prime.

It is a super-2 number, since 2×231161692 = 1068714538473122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23116199) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 281864 + ... + 281945.

It is an arithmetic number, because the mean of its divisors is an integer number (5920005).

Almost surely, 223116169 is an apocalyptic number.

It is an amenable number.

23116169 is a deficient number, since it is larger than the sum of its proper divisors (563851).

23116169 is an equidigital number, since it uses as much as digits as its factorization.

23116169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563850.

The product of its digits is 1944, while the sum is 29.

The square root of 23116169 is about 4807.9277240824. The cubic root of 23116169 is about 284.8646900522.

The spelling of 23116169 in words is "twenty-three million, one hundred sixteen thousand, one hundred sixty-nine".

Divisors: 1 41 563809 23116169