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50290311 = 31091131361
BaseRepresentation
bin1011111111010…
…1111010000111
310111122000100010
42333311322013
5100333242221
64553521303
71150313661
oct277657207
9114560303
1050290311
1126429945
1214a13233
13a55a5a6
146971531
154635c76
hex2ff5e87

50290311 has 16 divisors (see below), whose sum is σ = 68317920. Its totient is φ = 32901120.

The previous prime is 50290297. The next prime is 50290319. The reversal of 50290311 is 11309205.

It is not a de Polignac number, because 50290311 - 27 = 50290183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50290319) 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, 36271 + ... + 37631.

It is an arithmetic number, because the mean of its divisors is an integer number (4269870).

Almost surely, 250290311 is an apocalyptic number.

50290311 is a deficient number, since it is larger than the sum of its proper divisors (18027609).

50290311 is a wasteful number, since it uses less digits than its factorization.

50290311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 50290311 is about 7091.5661880857. The cubic root of 50290311 is about 369.1147842463.

Adding to 50290311 its reverse (11309205), we get a palindrome (61599516).

The spelling of 50290311 in words is "fifty million, two hundred ninety thousand, three hundred eleven".

Divisors: 1 3 109 113 327 339 1361 4083 12317 36951 148349 153793 445047 461379 16763437 50290311