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30182428 = 2267112621
BaseRepresentation
bin111001100100…
…0110000011100
32002210102111201
41303020300130
530211314203
62554525244
7514355263
oct163106034
962712451
1030182428
1116045561
12a136824
13633a033
1440195da
1529b2e1d
hex1cc8c1c

30182428 has 12 divisors (see below), whose sum is σ = 53608072. Its totient is φ = 14865840.

The previous prime is 30182363. The next prime is 30182441. The reversal of 30182428 is 82428103.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30182396 and 30182405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56043 + ... + 56578.

Almost surely, 230182428 is an apocalyptic number.

It is an amenable number.

30182428 is a deficient number, since it is larger than the sum of its proper divisors (23425644).

30182428 is a wasteful number, since it uses less digits than its factorization.

30182428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112692 (or 112690 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 30182428 is about 5493.8536565875. The cubic root of 30182428 is about 311.3518073652.

The spelling of 30182428 in words is "thirty million, one hundred eighty-two thousand, four hundred twenty-eight".

Divisors: 1 2 4 67 134 268 112621 225242 450484 7545607 15091214 30182428