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30127612 = 2227127793
BaseRepresentation
bin111001011101…
…1010111111100
32002200122022111
41302323113330
530203040422
62553423404
7514036414
oct162732774
962618274
1030127612
1116008359
12a10ab64
13631b0b8
144003644
1529a1a77
hex1cbb5fc

30127612 has 12 divisors (see below), whose sum is σ = 52919776. Its totient is φ = 15007680.

The previous prime is 30127609. The next prime is 30127613. The reversal of 30127612 is 21672103.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30127613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12813 + ... + 14980.

Almost surely, 230127612 is an apocalyptic number.

It is an amenable number.

30127612 is a deficient number, since it is larger than the sum of its proper divisors (22792164).

30127612 is a wasteful number, since it uses less digits than its factorization.

30127612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28068 (or 28066 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 30127612 is about 5488.8625415472. The cubic root of 30127612 is about 311.1632053166.

Adding to 30127612 its reverse (21672103), we get a palindrome (51799715).

The spelling of 30127612 in words is "thirty million, one hundred twenty-seven thousand, six hundred twelve".

Divisors: 1 2 4 271 542 1084 27793 55586 111172 7531903 15063806 30127612