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30430427 = 53574159
BaseRepresentation
bin111010000010…
…1010011011011
32010021000200212
41310011103123
530242233202
63004121335
7516440306
oct164052333
963230625
1030430427
11161a4915
12a23624b
1363c5b91
144081b3d
152a11652
hex1d054db

30430427 has 4 divisors (see below), whose sum is σ = 31004640. Its totient is φ = 29856216.

The previous prime is 30430409. The next prime is 30430429. The reversal of 30430427 is 72403403.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30430427 - 28 = 30430171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30430429) 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 3 ways as a sum of consecutive naturals, for example, 287027 + ... + 287132.

It is an arithmetic number, because the mean of its divisors is an integer number (7751160).

Almost surely, 230430427 is an apocalyptic number.

30430427 is a deficient number, since it is larger than the sum of its proper divisors (574213).

30430427 is an equidigital number, since it uses as much as digits as its factorization.

30430427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574212.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 30430427 is about 5516.3780689869. The cubic root of 30430427 is about 312.2022405359.

The spelling of 30430427 in words is "thirty million, four hundred thirty thousand, four hundred twenty-seven".

Divisors: 1 53 574159 30430427