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30444134220 = 22325169134079
BaseRepresentation
bin11100010110100111…
…001001111101001100
32220120201000020222200
4130112213021331030
5444322144243340
621552535241500
72125301604543
oct342647117514
986521006880
1030444134220
1111a02a13705
125a97819290
132b423b9c06
14168b41b15a
15bd2b09330
hex7169c9f4c

30444134220 has 36 divisors (see below), whose sum is σ = 92347207680. Its totient is φ = 8118435744.

The previous prime is 30444134209. The next prime is 30444134251. The reversal of 30444134220 is 2243144403.

It is a happy number.

30444134220 is a `hidden beast` number, since 304 + 4 + 4 + 134 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 84566860 + ... + 84567219.

Almost surely, 230444134220 is an apocalyptic number.

30444134220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30444134220 is an abundant number, since it is smaller than the sum of its proper divisors (61903073460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30444134220 is a wasteful number, since it uses less digits than its factorization.

30444134220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169134094 (or 169134089 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 30444134220 its reverse (2243144403), we get a palindrome (32687278623).

The spelling of 30444134220 in words is "thirty billion, four hundred forty-four million, one hundred thirty-four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 169134079 338268158 507402237 676536316 845670395 1014804474 1522206711 1691340790 2029608948 2537011185 3044413422 3382681580 5074022370 6088826844 7611033555 10148044740 15222067110 30444134220