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30833284 = 2237208333
BaseRepresentation
bin111010110011…
…1101010000100
32011000111022111
41311213222010
530343131114
63020510404
7523035646
oct165475204
964014274
1030833284
111644a559
12a3ab404
136507361
144148896
152a90bc4
hex1d67a84

30833284 has 12 divisors (see below), whose sum is σ = 55416844. Its totient is φ = 14999904.

The previous prime is 30833281. The next prime is 30833303. The reversal of 30833284 is 48233803.

It can be written as a sum of positive squares in 2 ways, for example, as 17305600 + 13527684 = 4160^2 + 3678^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30833281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104019 + ... + 104314.

Almost surely, 230833284 is an apocalyptic number.

It is an amenable number.

30833284 is a deficient number, since it is larger than the sum of its proper divisors (24583560).

30833284 is a wasteful number, since it uses less digits than its factorization.

30833284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208374 (or 208372 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 30833284 is about 5552.7726407625. The cubic root of 30833284 is about 313.5739146228.

The spelling of 30833284 in words is "thirty million, eight hundred thirty-three thousand, two hundred eighty-four".

Divisors: 1 2 4 37 74 148 208333 416666 833332 7708321 15416642 30833284