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30034631 = 1117612633
BaseRepresentation
bin111001010010…
…0101011000111
32002111220202202
41302210223013
530142102011
62551425115
7513201344
oct162445307
962456682
1030034631
1115a54510
12a08519b
1362b7993
143dbb7cb
15298423b
hex1ca4ac7

30034631 has 16 divisors (see below), whose sum is σ = 35274528. Its totient is φ = 25267200.

The previous prime is 30034607. The next prime is 30034651. The reversal of 30034631 is 13643003.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30034631 is a prime.

It is a super-2 number, since 2×300346312 = 1804158118612322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30034601) 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 15 ways as a sum of consecutive naturals, for example, 10091 + ... + 12723.

It is an arithmetic number, because the mean of its divisors is an integer number (2204658).

Almost surely, 230034631 is an apocalyptic number.

30034631 is a deficient number, since it is larger than the sum of its proper divisors (5239897).

30034631 is a wasteful number, since it uses less digits than its factorization.

30034631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 30034631 is about 5480.3860265496. The cubic root of 30034631 is about 310.8427674728.

Adding to 30034631 its reverse (13643003), we get a palindrome (43677634).

The spelling of 30034631 in words is "thirty million, thirty-four thousand, six hundred thirty-one".

Divisors: 1 11 17 61 187 671 1037 2633 11407 28963 44761 160613 492371 1766743 2730421 30034631