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245525045 = 549105009
BaseRepresentation
bin11101010001001…
…10101000110101
3122002222222001012
432220212220311
51000323300140
640210242005
76040633313
oct1650465065
9562888035
10245525045
11116657667
126a286305
133bb368bc
14248730b3
151684d265
hexea26a35

245525045 has 4 divisors (see below), whose sum is σ = 294630060. Its totient is φ = 196420032.

The previous prime is 245525017. The next prime is 245525083. The reversal of 245525045 is 540525542.

245525045 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, and also an emirpimes, since its reverse is a distinct semiprime: 540525542 = 2270262771.

It can be written as a sum of positive squares in 2 ways, for example, as 50140561 + 195384484 = 7081^2 + 13978^2 .

It is a cyclic number.

It is not a de Polignac number, because 245525045 - 212 = 245520949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24552500 + ... + 24552509.

It is an arithmetic number, because the mean of its divisors is an integer number (73657515).

Almost surely, 2245525045 is an apocalyptic number.

It is an amenable number.

245525045 is a deficient number, since it is larger than the sum of its proper divisors (49105015).

245525045 is an equidigital number, since it uses as much as digits as its factorization.

245525045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49105014.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 245525045 is about 15669.2388136757. The cubic root of 245525045 is about 626.1791457189.

The spelling of 245525045 in words is "two hundred forty-five million, five hundred twenty-five thousand, forty-five".

Divisors: 1 5 49105009 245525045