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50689253 = 53956401
BaseRepresentation
bin1100000101011…
…1010011100101
310112101021120202
43001113103211
5100434024003
65010240245
71153565036
oct301272345
9115337522
1050689253
112668164a
1214b86085
13a66a054
146a36a8d
1546b4088
hex30574e5

50689253 has 4 divisors (see below), whose sum is σ = 51645708. Its totient is φ = 49732800.

The previous prime is 50689241. The next prime is 50689259. The reversal of 50689253 is 35298605.

50689253 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.

It can be written as a sum of positive squares in 2 ways, for example, as 44528929 + 6160324 = 6673^2 + 2482^2 .

It is a cyclic number.

It is not a de Polignac number, because 50689253 - 24 = 50689237 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 (50689259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478148 + ... + 478253.

It is an arithmetic number, because the mean of its divisors is an integer number (12911427).

Almost surely, 250689253 is an apocalyptic number.

50689253 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

50689253 is a deficient number, since it is larger than the sum of its proper divisors (956455).

50689253 is an equidigital number, since it uses as much as digits as its factorization.

50689253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956454.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 50689253 is about 7119.6385441959. The cubic root of 50689253 is about 370.0882501936.

The spelling of 50689253 in words is "fifty million, six hundred eighty-nine thousand, two hundred fifty-three".

Divisors: 1 53 956401 50689253