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30132625 = 53241061
BaseRepresentation
bin111001011110…
…0100110010001
32002200220012011
41302330212101
530203221000
62553502521
7514060135
oct162744621
962626164
1030132625
11160110a6
12a111a41
136320473
1440053c5
1529a32ba
hex1cbc991

30132625 has 8 divisors (see below), whose sum is σ = 37605672. Its totient is φ = 24106000.

The previous prime is 30132623. The next prime is 30132629. The reversal of 30132625 is 52623103.

It can be written as a sum of positive squares in 4 ways, for example, as 408321 + 29724304 = 639^2 + 5452^2 .

It is not a de Polignac number, because 30132625 - 21 = 30132623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30132596 and 30132605.

It is not an unprimeable number, because it can be changed into a prime (30132623) by changing a digit.

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, 120406 + ... + 120655.

It is an arithmetic number, because the mean of its divisors is an integer number (4700709).

Almost surely, 230132625 is an apocalyptic number.

It is an amenable number.

30132625 is a deficient number, since it is larger than the sum of its proper divisors (7473047).

30132625 is an equidigital number, since it uses as much as digits as its factorization.

30132625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241076 (or 241066 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 30132625 is about 5489.3191745425. The cubic root of 30132625 is about 311.1804627375.

Adding to 30132625 its reverse (52623103), we get a palindrome (82755728).

The spelling of 30132625 in words is "thirty million, one hundred thirty-two thousand, six hundred twenty-five".

Divisors: 1 5 25 125 241061 1205305 6026525 30132625