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30394774418 = 229443516163
BaseRepresentation
bin11100010011101010…
…110111001110010010
32220110021010112001212
4130103222313032102
5444222030240133
621544013300122
72124132214451
oct342352671622
986407115055
1030394774418
111198806a988
125a83194642
132b350c7028
141684a4cb98
15bcd609148
hex713ab7392

30394774418 has 8 divisors (see below), whose sum is σ = 45593798448. Its totient is φ = 15196841604.

The previous prime is 30394774409. The next prime is 30394774493. The reversal of 30394774418 is 81447749303.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×303947744182 (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 199196 + ... + 316967.

It is an arithmetic number, because the mean of its divisors is an integer number (5699224806).

Almost surely, 230394774418 is an apocalyptic number.

30394774418 is a deficient number, since it is larger than the sum of its proper divisors (15199024030).

30394774418 is a wasteful number, since it uses less digits than its factorization.

30394774418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545608.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 30394774418 in words is "thirty billion, three hundred ninety-four million, seven hundred seventy-four thousand, four hundred eighteen".

Divisors: 1 2 29443 58886 516163 1032326 15197387209 30394774418