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10208449 = 172812137
BaseRepresentation
bin100110111100…
…010011000001
3201012122100201
4212330103001
510103132244
61002445201
7152525146
oct46742301
921178321
1010208449
115842839
123503801
132165704
1414da3cd
15d69ad4
hex9bc4c1

10208449 has 8 divisors (see below), whose sum is σ = 10852488. Its totient is φ = 9569280.

The previous prime is 10208441. The next prime is 10208461. The reversal of 10208449 is 94480201.

10208449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1166400 + 9042049 = 1080^2 + 3007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10208449 - 23 = 10208441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10208441) 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 7 ways as a sum of consecutive naturals, for example, 3709 + ... + 5845.

It is an arithmetic number, because the mean of its divisors is an integer number (1356561).

Almost surely, 210208449 is an apocalyptic number.

It is an amenable number.

10208449 is a deficient number, since it is larger than the sum of its proper divisors (644039).

10208449 is a wasteful number, since it uses less digits than its factorization.

10208449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 10208449 is about 3195.0663529886. The cubic root of 10208449 is about 216.9301522953.

Subtracting from 10208449 its sum of digits (28), we obtain a triangular number (10208421 = T4518).

The spelling of 10208449 in words is "ten million, two hundred eight thousand, four hundred forty-nine".

Divisors: 1 17 281 2137 4777 36329 600497 10208449