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30370372 = 2214950957
BaseRepresentation
bin111001111011…
…0101001000100
32010010222022121
41303312221010
530233322442
63002535324
7516100234
oct163665104
963128277
1030370372
111616378a
12a207544
1363a4746
144067cc4
1529ed967
hex1cf6a44

30370372 has 12 divisors (see below), whose sum is σ = 53505900. Its totient is φ = 15082976.

The previous prime is 30370367. The next prime is 30370387. The reversal of 30370372 is 27307303.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14258176 + 16112196 = 3776^2 + 4014^2 .

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 3 ways as a sum of consecutive naturals, for example, 24883 + ... + 26074.

It is an arithmetic number, because the mean of its divisors is an integer number (4458825).

Almost surely, 230370372 is an apocalyptic number.

It is an amenable number.

30370372 is a deficient number, since it is larger than the sum of its proper divisors (23135528).

30370372 is a wasteful number, since it uses less digits than its factorization.

30370372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51110 (or 51108 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 25.

The square root of 30370372 is about 5510.9320445819. The cubic root of 30370372 is about 311.9967263518.

Adding to 30370372 its reverse (27307303), we get a palindrome (57677675).

The spelling of 30370372 in words is "thirty million, three hundred seventy thousand, three hundred seventy-two".

Divisors: 1 2 4 149 298 596 50957 101914 203828 7592593 15185186 30370372