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30427042 = 2173472579
BaseRepresentation
bin111010000010…
…0011110100010
32010020212001111
41310010132202
530242131132
63004053534
7516424402
oct164043642
963225044
1030427042
11161a2318
12a2342aa
1363c4489
144080802
152a10647
hex1d047a2

30427042 has 16 divisors (see below), whose sum is σ = 48483360. Its totient is φ = 14271808.

The previous prime is 30427039. The next prime is 30427049. The reversal of 30427042 is 24072403.

It is not an unprimeable number, because it can be changed into a prime (30427049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10509 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (3030210).

Almost surely, 230427042 is an apocalyptic number.

30427042 is a deficient number, since it is larger than the sum of its proper divisors (18056318).

30427042 is a wasteful number, since it uses less digits than its factorization.

30427042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 30427042 is about 5516.0712468205. The cubic root of 30427042 is about 312.1906639235.

Adding to 30427042 its reverse (24072403), we get a palindrome (54499445).

The spelling of 30427042 in words is "thirty million, four hundred twenty-seven thousand, forty-two".

Divisors: 1 2 17 34 347 694 2579 5158 5899 11798 43843 87686 894913 1789826 15213521 30427042