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30300745 = 56060149
BaseRepresentation
bin111001110010…
…1101001001001
32010000102210211
41303211221021
530224110440
63001241121
7515360236
oct163455111
963012724
1030300745
1116116442
12a1931a1
13637bb47
14404a78d
1529d7eea
hex1ce5a49

30300745 has 4 divisors (see below), whose sum is σ = 36360900. Its totient is φ = 24240592.

The previous prime is 30300731. The next prime is 30300769. The reversal of 30300745 is 54700303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22353984 + 7946761 = 4728^2 + 2819^2 .

It is a cyclic number.

It is not a de Polignac number, because 30300745 - 219 = 29776457 is a prime.

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, 3030070 + ... + 3030079.

It is an arithmetic number, because the mean of its divisors is an integer number (9090225).

Almost surely, 230300745 is an apocalyptic number.

It is an amenable number.

30300745 is a deficient number, since it is larger than the sum of its proper divisors (6060155).

30300745 is an equidigital number, since it uses as much as digits as its factorization.

30300745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060154.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 30300745 is about 5504.6112487623. The cubic root of 30300745 is about 311.7581164084.

The spelling of 30300745 in words is "thirty million, three hundred thousand, seven hundred forty-five".

Divisors: 1 5 6060149 30300745