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30044159 = 70142859
BaseRepresentation
bin111001010011…
…0111111111111
32002112101211122
41302212333333
530142403114
62551541155
7513241205
oct162467777
962471748
1030044159
1115a60692
12a08a7bb
1362bc112
143dc1075
152986e8e
hex1ca6fff

30044159 has 4 divisors (see below), whose sum is σ = 30087720. Its totient is φ = 30000600.

The previous prime is 30044153. The next prime is 30044171. The reversal of 30044159 is 95144003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30044159 - 212 = 30040063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30044153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20729 + ... + 22130.

It is an arithmetic number, because the mean of its divisors is an integer number (7521930).

Almost surely, 230044159 is an apocalyptic number.

30044159 is a deficient number, since it is larger than the sum of its proper divisors (43561).

30044159 is an equidigital number, since it uses as much as digits as its factorization.

30044159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43560.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30044159 is about 5481.2552394502. The cubic root of 30044159 is about 310.8756339412.

It can be divided in two parts, 30044 and 159, that added together give a palindrome (30203).

The spelling of 30044159 in words is "thirty million, forty-four thousand, one hundred fifty-nine".

Divisors: 1 701 42859 30044159