Search a number
-
+
10664131 = 79134989
BaseRepresentation
bin101000101011…
…100011000011
3202001210102211
4220223203003
510212223011
61020322551
7156433522
oct50534303
922053384
1010664131
116024135
1236a3457
132294c4a
1415b84b9
15e09b21
hexa2b8c3

10664131 has 4 divisors (see below), whose sum is σ = 10799200. Its totient is φ = 10529064.

The previous prime is 10664113. The next prime is 10664179. The reversal of 10664131 is 13146601.

It is a happy number.

10664131 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, and also an emirpimes, since its reverse is a distinct semiprime: 13146601 = 131011277.

It is a cyclic number.

It is not a de Polignac number, because 10664131 - 25 = 10664099 is a prime.

It is a super-2 number, since 2×106641312 = 227447379970322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10662131) 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, 67416 + ... + 67573.

It is an arithmetic number, because the mean of its divisors is an integer number (2699800).

Almost surely, 210664131 is an apocalyptic number.

10664131 is a deficient number, since it is larger than the sum of its proper divisors (135069).

10664131 is an equidigital number, since it uses as much as digits as its factorization.

10664131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135068.

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

The square root of 10664131 is about 3265.5981075448. The cubic root of 10664131 is about 220.1110389880. Note that the first 3 decimals are identical.

The spelling of 10664131 in words is "ten million, six hundred sixty-four thousand, one hundred thirty-one".

Divisors: 1 79 134989 10664131