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30814 = 273171
BaseRepresentation
bin111100001011110
31120021021
413201132
51441224
6354354
7155560
oct74136
946237
1030814
1121173
12159ba
1311044
14b330
1591e4
hex785e

30814 has 16 divisors (see below), whose sum is σ = 55296. Its totient is φ = 12600.

The previous prime is 30809. The next prime is 30817. The reversal of 30814 is 41803.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399 + ... + 469.

It is an arithmetic number, because the mean of its divisors is an integer number (3456).

230814 is an apocalyptic number.

30814 is a deficient number, since it is larger than the sum of its proper divisors (24482).

30814 is a wasteful number, since it uses less digits than its factorization.

30814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111.

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

The square root of 30814 is about 175.5391694181. The cubic root of 30814 is about 31.3508528351.

The spelling of 30814 in words is "thirty thousand, eight hundred fourteen".