Search a number
-
+
10386641 = 14969709
BaseRepresentation
bin100111100111…
…110011010001
3201112200210102
4213213303101
510124333031
61010342145
7154166516
oct47476321
921480712
1010386641
115954701
12358a955
1321c8855
14154530d
15da27cb
hex9e7cd1

10386641 has 4 divisors (see below), whose sum is σ = 10456500. Its totient is φ = 10316784.

The previous prime is 10386637. The next prime is 10386647. The reversal of 10386641 is 14668301.

10386641 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 can be written as a sum of positive squares in 2 ways, for example, as 495616 + 9891025 = 704^2 + 3145^2 .

It is a cyclic number.

It is not a de Polignac number, because 10386641 - 22 = 10386637 is a prime.

It is a super-2 number, since 2×103866412 = 215764622525762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10386647) 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, 34706 + ... + 35003.

It is an arithmetic number, because the mean of its divisors is an integer number (2614125).

Almost surely, 210386641 is an apocalyptic number.

It is an amenable number.

10386641 is a deficient number, since it is larger than the sum of its proper divisors (69859).

10386641 is an equidigital number, since it uses as much as digits as its factorization.

10386641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69858.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 10386641 is about 3222.8312087356. The cubic root of 10386641 is about 218.1850755564.

The spelling of 10386641 in words is "ten million, three hundred eighty-six thousand, six hundred forty-one".

Divisors: 1 149 69709 10386641