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BaseRepresentation
bin11101001111100…
…00111101110001
3122002120210110211
432213300331301
51000244231301
640201424121
76036026341
oct1647607561
9562523424
10245305201
11116517479
126a19b041
133ba8a80b
1424816d21
1516808051
hexe9f0f71

245305201 has 4 divisors (see below), whose sum is σ = 253218304. Its totient is φ = 237392100.

The previous prime is 245305187. The next prime is 245305211. The reversal of 245305201 is 102503542.

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.

It is a cyclic number.

It is not a de Polignac number, because 245305201 - 25 = 245305169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245305211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3956505 + ... + 3956566.

It is an arithmetic number, because the mean of its divisors is an integer number (63304576).

Almost surely, 2245305201 is an apocalyptic number.

It is an amenable number.

245305201 is a deficient number, since it is larger than the sum of its proper divisors (7913103).

245305201 is an equidigital number, since it uses as much as digits as its factorization.

245305201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913102.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 245305201 is about 15662.2220964970. Note that the first 3 decimals coincide. The cubic root of 245305201 is about 625.9921955632.

Adding to 245305201 its reverse (102503542), we get a palindrome (347808743).

The spelling of 245305201 in words is "two hundred forty-five million, three hundred five thousand, two hundred one".

Divisors: 1 31 7913071 245305201