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30844 = 2211701
BaseRepresentation
bin111100001111100
31120022101
413201330
51441334
6354444
7155632
oct74174
946271
1030844
11211a0
1215a24
1311068
14b352
159214
hex787c

30844 has 12 divisors (see below), whose sum is σ = 58968. Its totient is φ = 14000.

The previous prime is 30841. The next prime is 30851. The reversal of 30844 is 44803.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30841) 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, 307 + ... + 394.

It is an arithmetic number, because the mean of its divisors is an integer number (4914).

230844 is an apocalyptic number.

It is an amenable number.

30844 is a deficient number, since it is larger than the sum of its proper divisors (28124).

30844 is a wasteful number, since it uses less digits than its factorization.

30844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 30844 is about 175.6245996437. The cubic root of 30844 is about 31.3610237587.

The spelling of 30844 in words is "thirty thousand, eight hundred forty-four".

Divisors: 1 2 4 11 22 44 701 1402 2804 7711 15422 30844