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30430873 = 1117315991
BaseRepresentation
bin111010000010…
…1011010011001
32010021001022101
41310011122121
530242241443
63004123401
7516441514
oct164053231
963231271
1030430873
11161a5190
12a236561
1363c6145
144081d7b
152a1184d
hex1d05699

30430873 has 8 divisors (see below), whose sum is σ = 33391296. Its totient is φ = 27502800.

The previous prime is 30430849. The next prime is 30430903. The reversal of 30430873 is 37803403.

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

It is a cyclic number.

It is not a de Polignac number, because 30430873 - 213 = 30422681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30430073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6093 + ... + 9898.

It is an arithmetic number, because the mean of its divisors is an integer number (4173912).

Almost surely, 230430873 is an apocalyptic number.

It is an amenable number.

30430873 is a deficient number, since it is larger than the sum of its proper divisors (2960423).

30430873 is a wasteful number, since it uses less digits than its factorization.

30430873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16175.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 30430873 is about 5516.4184939143. The cubic root of 30430873 is about 312.2037657803.

The spelling of 30430873 in words is "thirty million, four hundred thirty thousand, eight hundred seventy-three".

Divisors: 1 11 173 1903 15991 175901 2766443 30430873