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30034905 = 352002327
BaseRepresentation
bin111001010010…
…0101111011001
32002111221010220
41302210233121
530142104110
62551430253
7513202215
oct162445731
962457126
1030034905
1115a5473a
12a085389
1362b7b44
143dbb945
152984370
hex1ca4bd9

30034905 has 8 divisors (see below), whose sum is σ = 48055872. Its totient is φ = 16018608.

The previous prime is 30034889. The next prime is 30034909. The reversal of 30034905 is 50943003.

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

It is not a de Polignac number, because 30034905 - 24 = 30034889 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30034909) 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, 1001149 + ... + 1001178.

It is an arithmetic number, because the mean of its divisors is an integer number (6006984).

Almost surely, 230034905 is an apocalyptic number.

It is an amenable number.

30034905 is a deficient number, since it is larger than the sum of its proper divisors (18020967).

30034905 is a wasteful number, since it uses less digits than its factorization.

30034905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002335.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 30034905 is about 5480.4110247316. The cubic root of 30034905 is about 310.8437127223.

Adding to 30034905 its reverse (50943003), we get a palindrome (80977908).

The spelling of 30034905 in words is "thirty million, thirty-four thousand, nine hundred five".

Divisors: 1 3 5 15 2002327 6006981 10011635 30034905