Search a number
-
+
11668051 = 43326947
BaseRepresentation
bin101100100000…
…101001010011
3210221210120001
4230200221103
510441334201
61054030431
7201114433
oct54405123
923853501
1011668051
11664a41a
123aa8417
132556b95
14179a2c3
151057301
hexb20a53

11668051 has 4 divisors (see below), whose sum is σ = 11695432. Its totient is φ = 11640672.

The previous prime is 11668049. The next prime is 11668073. The reversal of 11668051 is 15086611.

11668051 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11668051 - 21 = 11668049 is a prime.

It is a super-2 number, since 2×116680512 = 272286828277202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11668021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13041 + ... + 13906.

It is an arithmetic number, because the mean of its divisors is an integer number (2923858).

Almost surely, 211668051 is an apocalyptic number.

11668051 is a deficient number, since it is larger than the sum of its proper divisors (27381).

11668051 is an equidigital number, since it uses as much as digits as its factorization.

11668051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27380.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 11668051 is about 3415.8528949590. The cubic root of 11668051 is about 226.8120407784.

Subtracting from 11668051 its product of nonzero digits (1440), we obtain a palindrome (11666611).

The spelling of 11668051 in words is "eleven million, six hundred sixty-eight thousand, fifty-one".

Divisors: 1 433 26947 11668051