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30124648 = 233765581
BaseRepresentation
bin111001011101…
…0101001101000
32002200111020201
41302322221220
530202442043
62553401544
7514024651
oct162725150
962614221
1030124648
1116006104
12a1092b4
136319948
144002528
1529a0c4d
hex1cbaa68

30124648 has 8 divisors (see below), whose sum is σ = 56483730. Its totient is φ = 15062320.

The previous prime is 30124621. The next prime is 30124669. The reversal of 30124648 is 84642103.

It can be written as a sum of positive squares in only one way, i.e., 28323684 + 1800964 = 5322^2 + 1342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1882783 + ... + 1882798.

Almost surely, 230124648 is an apocalyptic number.

It is an amenable number.

30124648 is a deficient number, since it is larger than the sum of its proper divisors (26359082).

30124648 is a wasteful number, since it uses less digits than its factorization.

30124648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765587 (or 3765583 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 30124648 is about 5488.5925336101. The cubic root of 30124648 is about 311.1530007465.

The spelling of 30124648 in words is "thirty million, one hundred twenty-four thousand, six hundred forty-eight".

Divisors: 1 2 4 8 3765581 7531162 15062324 30124648