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245045201 = 877279413
BaseRepresentation
bin11101001101100…
…01011111010001
3122002002120211012
432212301133101
51000212421301
640152100305
76033564332
oct1646613721
9562076735
10245045201
1111635a0a5
126a094695
133b9c937b
142478a289
15167a5ebb
hexe9b17d1

245045201 has 4 divisors (see below), whose sum is σ = 245325492. Its totient is φ = 244764912.

The previous prime is 245045167. The next prime is 245045209. The reversal of 245045201 is 102540542.

It is a happy number.

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 160680976 + 84364225 = 12676^2 + 9185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-245045201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245045209) 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, 138830 + ... + 140583.

It is an arithmetic number, because the mean of its divisors is an integer number (61331373).

Almost surely, 2245045201 is an apocalyptic number.

It is an amenable number.

245045201 is a deficient number, since it is larger than the sum of its proper divisors (280291).

245045201 is an equidigital number, since it uses as much as digits as its factorization.

245045201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280290.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 245045201 is about 15653.9196688880. The cubic root of 245045201 is about 625.7709534715.

Adding to 245045201 its reverse (102540542), we get a palindrome (347585743).

The spelling of 245045201 in words is "two hundred forty-five million, forty-five thousand, two hundred one".

Divisors: 1 877 279413 245045201