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36031 = 137263
BaseRepresentation
bin1000110010111111
31211102111
420302333
52123111
6434451
7210022
oct106277
954374
1036031
1125086
1218a27
1313528
14d1b9
15aa21
hex8cbf

36031 has 4 divisors (see below), whose sum is σ = 36432. Its totient is φ = 35632.

The previous prime is 36017. The next prime is 36037. The reversal of 36031 is 13063.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 36031 - 25 = 35999 is a prime.

It is a super-2 number, since 2×360312 = 2596465922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 36031.

It is not an unprimeable number, because it can be changed into a prime (36037) 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, 6 + ... + 268.

It is an arithmetic number, because the mean of its divisors is an integer number (9108).

236031 is an apocalyptic number.

36031 is a deficient number, since it is larger than the sum of its proper divisors (401).

36031 is a wasteful number, since it uses less digits than its factorization.

36031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 36031 is about 189.8183342040. The cubic root of 36031 is about 33.0287475239.

Adding to 36031 its reverse (13063), we get a palindrome (49094).

The spelling of 36031 in words is "thirty-six thousand, thirty-one".

Divisors: 1 137 263 36031