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50200031 = 7174110289
BaseRepresentation
bin1011111101111…
…1110111011111
310111110102111102
42333133313133
5100322400111
64551543315
71146456530
oct277376737
9114412442
1050200031
1126378032
121498ab3b
13a52847b
14694a687
15461913b
hex2fdfddf

50200031 has 16 divisors (see below), whose sum is σ = 62233920. Its totient is φ = 39505920.

The previous prime is 50200021. The next prime is 50200039. The reversal of 50200031 is 13000205.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50200031 is a prime.

It is a super-2 number, since 2×502000312 = 5040086224801922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50199985 and 50200021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50200039) 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, 266 + ... + 10023.

It is an arithmetic number, because the mean of its divisors is an integer number (3889620).

Almost surely, 250200031 is an apocalyptic number.

50200031 is a deficient number, since it is larger than the sum of its proper divisors (12033889).

50200031 is a wasteful number, since it uses less digits than its factorization.

50200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10354.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 50200031 is about 7085.1980212271. The cubic root of 50200031 is about 368.8937765108.

Adding to 50200031 its reverse (13000205), we get a palindrome (63200236).

The spelling of 50200031 in words is "fifty million, two hundred thousand, thirty-one".

Divisors: 1 7 17 41 119 287 697 4879 10289 72023 174913 421849 1224391 2952943 7171433 50200031