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30434205 = 352028947
BaseRepresentation
bin111010000011…
…0001110011101
32010021012212210
41310012032131
530242343310
63004151033
7516454314
oct164061635
963235783
1030434205
11161a773a
12a238479
1363c7809
14408327b
152a12820
hex1d0639d

30434205 has 8 divisors (see below), whose sum is σ = 48694752. Its totient is φ = 16231568.

The previous prime is 30434167. The next prime is 30434207. The reversal of 30434205 is 50243403.

It is a happy number.

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 30434205 - 213 = 30426013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30434207) 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 7 ways as a sum of consecutive naturals, for example, 1014459 + ... + 1014488.

It is an arithmetic number, because the mean of its divisors is an integer number (6086844).

Almost surely, 230434205 is an apocalyptic number.

It is an amenable number.

30434205 is a deficient number, since it is larger than the sum of its proper divisors (18260547).

30434205 is a wasteful number, since it uses less digits than its factorization.

30434205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028955.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 30434205 is about 5516.7204931916. The cubic root of 30434205 is about 312.2151601843.

Adding to 30434205 its reverse (50243403), we get a palindrome (80677608).

The spelling of 30434205 in words is "thirty million, four hundred thirty-four thousand, two hundred five".

Divisors: 1 3 5 15 2028947 6086841 10144735 30434205