Search a number
-
+
208245107 = 746763703
BaseRepresentation
bin11000110100110…
…01000101110011
3112111211221120202
430122121011303
5411302320412
632355225415
75106024410
oct1432310563
9474757522
10208245107
11a76046a4
12598a826b
13341b3175
141d92b107
15134373c2
hexc699173

208245107 has 8 divisors (see below), whose sum is σ = 238507776. Its totient is φ = 178110792.

The previous prime is 208245077. The next prime is 208245113. The reversal of 208245107 is 701542802.

208245107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 208245107 - 210 = 208244083 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 208245107.

It is not an unprimeable number, because it can be changed into a prime (208245127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28583 + ... + 35120.

It is an arithmetic number, because the mean of its divisors is an integer number (29813472).

Almost surely, 2208245107 is an apocalyptic number.

208245107 is a deficient number, since it is larger than the sum of its proper divisors (30262669).

208245107 is an equidigital number, since it uses as much as digits as its factorization.

208245107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64177.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 208245107 is about 14430.7001562641. The cubic root of 208245107 is about 592.7318558249.

Adding to 208245107 its reverse (701542802), we get a palindrome (909787909).

The spelling of 208245107 in words is "two hundred eight million, two hundred forty-five thousand, one hundred seven".

Divisors: 1 7 467 3269 63703 445921 29749301 208245107