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30112622 = 215056311
BaseRepresentation
bin111001011011…
…1101101101110
32002122212202022
41302313231232
530202100442
62553230142
7513644621
oct162675556
962585668
1030112622
1115aa8071
12a102352
136314327
143ddbdb8
15299c3d2
hex1cb7b6e

30112622 has 4 divisors (see below), whose sum is σ = 45168936. Its totient is φ = 15056310.

The previous prime is 30112619. The next prime is 30112631. The reversal of 30112622 is 22621103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22621103 = 31729713.

It is a self number, because there is not a number n which added to its sum of digits gives 30112622.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7528154 + ... + 7528157.

It is an arithmetic number, because the mean of its divisors is an integer number (11292234).

Almost surely, 230112622 is an apocalyptic number.

30112622 is a deficient number, since it is larger than the sum of its proper divisors (15056314).

30112622 is a wasteful number, since it uses less digits than its factorization.

30112622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15056313.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30112622 is about 5487.4968792702. The cubic root of 30112622 is about 311.1115903148. Note that the first 3 decimals are identical.

Adding to 30112622 its reverse (22621103), we get a palindrome (52733725).

The spelling of 30112622 in words is "thirty million, one hundred twelve thousand, six hundred twenty-two".

Divisors: 1 2 15056311 30112622