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50520089 = 149409829
BaseRepresentation
bin1100000010111…
…0000000011001
310112001200112102
43000232000121
5100413120324
65002453145
71152261614
oct300560031
9115050472
1050520089
1126576544
1214b041b5
13a60b059
1469d117b
15467ddae
hex302e019

50520089 has 8 divisors (see below), whose sum is σ = 51045000. Its totient is φ = 49997952.

The previous prime is 50520053. The next prime is 50520097. The reversal of 50520089 is 98002505.

It can be written as a sum of positive squares in 4 ways, for example, as 9815689 + 40704400 = 3133^2 + 6380^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50520089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50520989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60527 + ... + 61355.

It is an arithmetic number, because the mean of its divisors is an integer number (6380625).

Almost surely, 250520089 is an apocalyptic number.

It is an amenable number.

50520089 is a deficient number, since it is larger than the sum of its proper divisors (524911).

50520089 is a wasteful number, since it uses less digits than its factorization.

50520089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 50520089 is about 7107.7485183425. The cubic root of 50520089 is about 369.6760958840.

The spelling of 50520089 in words is "fifty million, five hundred twenty thousand, eighty-nine".

Divisors: 1 149 409 829 60941 123521 339061 50520089