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10216489 = 97710457
BaseRepresentation
bin100110111110…
…010000101001
3201020001101111
4212332100221
510103411424
61002550321
7152560453
oct46762051
921201344
1010216489
115848888
1235083a1
13216927a
1414dd2d3
15d6c194
hex9be429

10216489 has 4 divisors (see below), whose sum is σ = 10227924. Its totient is φ = 10205056.

The previous prime is 10216457. The next prime is 10216513. The reversal of 10216489 is 98461201.

It is a happy number.

10216489 is digitally balanced in base 2, 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 9406489 + 810000 = 3067^2 + 900^2 .

It is a cyclic number.

It is not a de Polignac number, because 10216489 - 25 = 10216457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10216489.

It is not an unprimeable number, because it can be changed into a prime (10216189) 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, 4252 + ... + 6205.

It is an arithmetic number, because the mean of its divisors is an integer number (2556981).

Almost surely, 210216489 is an apocalyptic number.

It is an amenable number.

10216489 is a deficient number, since it is larger than the sum of its proper divisors (11435).

10216489 is an equidigital number, since it uses as much as digits as its factorization.

10216489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11434.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 10216489 is about 3196.3242951866. The cubic root of 10216489 is about 216.9870875113.

The spelling of 10216489 in words is "ten million, two hundred sixteen thousand, four hundred eighty-nine".

Divisors: 1 977 10457 10216489