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31084 = 2219409
BaseRepresentation
bin111100101101100
31120122021
413211230
51443314
6355524
7156424
oct74554
946567
1031084
1121399
1215ba4
13111c1
14b484
159324
hex796c

31084 has 12 divisors (see below), whose sum is σ = 57400. Its totient is φ = 14688.

The previous prime is 31081. The next prime is 31091. The reversal of 31084 is 48013.

Adding to 31084 its reverse (48013), we get a palindrome (79097).

It is not an unprimeable number, because it can be changed into a prime (31081) 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, 129 + ... + 280.

231084 is an apocalyptic number.

It is an amenable number.

31084 is a deficient number, since it is larger than the sum of its proper divisors (26316).

31084 is a wasteful number, since it uses less digits than its factorization.

31084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 31084 is about 176.3065512112. The cubic root of 31084 is about 31.4421546952.

The spelling of 31084 in words is "thirty-one thousand, eighty-four".

Divisors: 1 2 4 19 38 76 409 818 1636 7771 15542 31084