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50890819 = 7139193271
BaseRepresentation
bin1100001000100…
…0100001000011
310112202112002011
43002020201003
5101012001234
65014433351
71155364510
oct302104103
9115675064
1050890819
11267aa031
1215062857
13a70aa15
146a8a307
154703b64
hex3088843

50890819 has 16 divisors (see below), whose sum is σ = 59100160. Its totient is φ = 42923520.

The previous prime is 50890811. The next prime is 50890837. The reversal of 50890819 is 91809805.

It is a cyclic number.

It is not a de Polignac number, because 50890819 - 23 = 50890811 is a prime.

It is a super-2 number, since 2×508908192 = 5179750916981522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50890811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187654 + ... + 187924.

It is an arithmetic number, because the mean of its divisors is an integer number (3693760).

Almost surely, 250890819 is an apocalyptic number.

50890819 is a deficient number, since it is larger than the sum of its proper divisors (8209341).

50890819 is a wasteful number, since it uses less digits than its factorization.

50890819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 50890819 is about 7133.7801339823. The cubic root of 50890819 is about 370.5781538254.

The spelling of 50890819 in words is "fifty million, eight hundred ninety thousand, eight hundred nineteen".

Divisors: 1 7 139 193 271 973 1351 1897 26827 37669 52303 187789 263683 366121 7270117 50890819