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10389641 = 38327127
BaseRepresentation
bin100111101000…
…100010001001
3201112211220112
4213220202021
510124432031
61010404105
7154211333
oct47504211
921484815
1010389641
115956989
123590635
1321ca022
141546453
15da362b
hex9e8889

10389641 has 4 divisors (see below), whose sum is σ = 10417152. Its totient is φ = 10362132.

The previous prime is 10389607. The next prime is 10389647. The reversal of 10389641 is 14698301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14698301 = 19376157.

It is a cyclic number.

It is not a de Polignac number, because 10389641 - 222 = 6195337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10389598 and 10389607.

It is not an unprimeable number, because it can be changed into a prime (10389647) 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, 13181 + ... + 13946.

It is an arithmetic number, because the mean of its divisors is an integer number (2604288).

Almost surely, 210389641 is an apocalyptic number.

It is an amenable number.

10389641 is a deficient number, since it is larger than the sum of its proper divisors (27511).

10389641 is an equidigital number, since it uses as much as digits as its factorization.

10389641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27510.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 10389641 is about 3223.2966044098. The cubic root of 10389641 is about 218.2060798515.

The spelling of 10389641 in words is "ten million, three hundred eighty-nine thousand, six hundred forty-one".

Divisors: 1 383 27127 10389641