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30125132 = 227531283
BaseRepresentation
bin111001011101…
…0110001001100
32002200111220122
41302322301030
530203001012
62553404112
7514026242
oct162726114
962614818
1030125132
1116006504
12a109638
136319c2b
144002792
1529a0e72
hex1cbac4c

30125132 has 6 divisors (see below), whose sum is σ = 52718988. Its totient is φ = 15062564.

The previous prime is 30125111. The next prime is 30125191. The reversal of 30125132 is 23152103.

It is a self number, because there is not a number n which added to its sum of digits gives 30125132.

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, 3765638 + ... + 3765645.

It is an arithmetic number, because the mean of its divisors is an integer number (8786498).

Almost surely, 230125132 is an apocalyptic number.

It is an amenable number.

30125132 is a deficient number, since it is larger than the sum of its proper divisors (22593856).

30125132 is a wasteful number, since it uses less digits than its factorization.

30125132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531287 (or 7531285 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30125132 is about 5488.6366248824. The cubic root of 30125132 is about 311.1546671255.

Adding to 30125132 its reverse (23152103), we get a palindrome (53277235).

The spelling of 30125132 in words is "thirty million, one hundred twenty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 7531283 15062566 30125132