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30804724 = 2267137839
BaseRepresentation
bin111010110000…
…0101011110100
32010222001010201
41311200223310
530341222344
63020130244
7522556456
oct165405364
963861121
1030804724
1116430055
12a396984
1364c7362
14413c2d6
152a874d4
hex1d60af4

30804724 has 24 divisors (see below), whose sum is σ = 55177920. Its totient is φ = 15043776.

The previous prime is 30804691. The next prime is 30804737. The reversal of 30804724 is 42740803.

It is a junction number, because it is equal to n+sod(n) for n = 30804692 and 30804701.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36297 + ... + 37135.

It is an arithmetic number, because the mean of its divisors is an integer number (2299080).

Almost surely, 230804724 is an apocalyptic number.

It is an amenable number.

30804724 is a deficient number, since it is larger than the sum of its proper divisors (24373196).

30804724 is a wasteful number, since it uses less digits than its factorization.

30804724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 30804724 is about 5550.2003567439. The cubic root of 30804724 is about 313.4770664942.

The spelling of 30804724 in words is "thirty million, eight hundred four thousand, seven hundred twenty-four".

Divisors: 1 2 4 67 134 137 268 274 548 839 1678 3356 9179 18358 36716 56213 112426 114943 224852 229886 459772 7701181 15402362 30804724