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30045382 = 253283447
BaseRepresentation
bin111001010011…
…1010011000110
32002112110111221
41302213103012
530142423012
62551550554
7513244603
oct162472306
962473457
1030045382
1115a615a4
12a08b45a
1362bc843
143dc16aa
152987507
hex1ca74c6

30045382 has 8 divisors (see below), whose sum is σ = 45918576. Its totient is φ = 14739192.

The previous prime is 30045377. The next prime is 30045391. The reversal of 30045382 is 28354003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 141618 + ... + 141829.

It is an arithmetic number, because the mean of its divisors is an integer number (5739822).

Almost surely, 230045382 is an apocalyptic number.

30045382 is a deficient number, since it is larger than the sum of its proper divisors (15873194).

30045382 is a wasteful number, since it uses less digits than its factorization.

30045382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283502.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 30045382 is about 5481.3668003519. The cubic root of 30045382 is about 310.8798521293.

Adding to 30045382 its reverse (28354003), we get a palindrome (58399385).

The spelling of 30045382 in words is "thirty million, forty-five thousand, three hundred eighty-two".

Divisors: 1 2 53 106 283447 566894 15022691 30045382