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30473919189 = 327483713003
BaseRepresentation
bin11100011000011000…
…110001101011010101
32220122210001111021200
4130120120301223111
5444402310403224
621555521503113
72126113016310
oct343030615325
986583044250
1030473919189
1111a1880758a
125aa57a1a99
132b4861805c
141691371977
15bd553e5c9
hex718631ad5

30473919189 has 12 divisors (see below), whose sum is σ = 50306152416. Its totient is φ = 17413668072.

The previous prime is 30473919187. The next prime is 30473919193. The reversal of 30473919189 is 98191937403.

It is a happy number.

30473919189 is a `hidden beast` number, since 3 + 0 + 473 + 9 + 1 + 91 + 89 = 666.

It is not a de Polignac number, because 30473919189 - 21 = 30473919187 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30473919187) 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 11 ways as a sum of consecutive naturals, for example, 241856439 + ... + 241856564.

It is an arithmetic number, because the mean of its divisors is an integer number (4192179368).

Almost surely, 230473919189 is an apocalyptic number.

It is an amenable number.

30473919189 is a deficient number, since it is larger than the sum of its proper divisors (19832233227).

30473919189 is a wasteful number, since it uses less digits than its factorization.

30473919189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483713016 (or 483713013 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 30473919189 in words is "thirty billion, four hundred seventy-three million, nine hundred nineteen thousand, one hundred eighty-nine".

Divisors: 1 3 7 9 21 63 483713003 1451139009 3385991021 4353417027 10157973063 30473919189