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253762085 = 550752417
BaseRepresentation
bin11110010000000…
…01101000100101
3122200111110010202
433020001220211
51004430341320
641103000245
76200641103
oct1710015045
9580443122
10253762085
11120273235
1270b99085
134075bba5
14259b8c73
1517428b75
hexf201a25

253762085 has 4 divisors (see below), whose sum is σ = 304514508. Its totient is φ = 203009664.

The previous prime is 253762037. The next prime is 253762087. The reversal of 253762085 is 580267352.

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 96786244 + 156975841 = 9838^2 + 12529^2 .

It is a cyclic number.

It is not a de Polignac number, because 253762085 - 212 = 253757989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253762087) 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 3 ways as a sum of consecutive naturals, for example, 25376204 + ... + 25376213.

It is an arithmetic number, because the mean of its divisors is an integer number (76128627).

Almost surely, 2253762085 is an apocalyptic number.

It is an amenable number.

253762085 is a deficient number, since it is larger than the sum of its proper divisors (50752423).

253762085 is an equidigital number, since it uses as much as digits as its factorization.

253762085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50752422.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 253762085 is about 15929.9116444505. The cubic root of 253762085 is about 633.1047588516.

The spelling of 253762085 in words is "two hundred fifty-three million, seven hundred sixty-two thousand, eighty-five".

Divisors: 1 5 50752417 253762085