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50290869 = 316763623
BaseRepresentation
bin1011111111011…
…0000010110101
310111122001002210
42333312002311
5100333301434
64553524033
71150315416
oct277660265
9114561083
1050290869
112642a302
1214a13619
13a55a915
14697180d
154635ee9
hex2ff60b5

50290869 has 4 divisors (see below), whose sum is σ = 67054496. Its totient is φ = 33527244.

The previous prime is 50290859. The next prime is 50290871. The reversal of 50290869 is 96809205.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50290869 - 25 = 50290837 is a prime.

It is a super-2 number, since 2×502908692 = 5058343009550322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50290859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8381809 + ... + 8381814.

It is an arithmetic number, because the mean of its divisors is an integer number (16763624).

Almost surely, 250290869 is an apocalyptic number.

It is an amenable number.

50290869 is a deficient number, since it is larger than the sum of its proper divisors (16763627).

50290869 is a wasteful number, since it uses less digits than its factorization.

50290869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16763626.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 50290869 is about 7091.6055304846. The cubic root of 50290869 is about 369.1161494217.

The spelling of 50290869 in words is "fifty million, two hundred ninety thousand, eight hundred sixty-nine".

Divisors: 1 3 16763623 50290869