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30198348421 = 197122385729
BaseRepresentation
bin11100000111111101…
…100011101010000101
32212221120112001020221
4130013331203222011
5443321234122141
621512315224341
72116225504063
oct340775435205
985846461227
1030198348421
11118971a914a
125a294480b1
132b034c1727
14166691b033
15bbb258bd1
hex707f63a85

30198348421 has 8 divisors (see below), whose sum is σ = 32235451200. Its totient is φ = 28206017280.

The previous prime is 30198348407. The next prime is 30198348451. The reversal of 30198348421 is 12484389103.

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

It is a cyclic number.

It is not a de Polignac number, because 30198348421 - 233 = 21608413829 is a prime.

It is a super-2 number, since 2×301983484212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30198348451) 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 7 ways as a sum of consecutive naturals, for example, 11191516 + ... + 11194213.

It is an arithmetic number, because the mean of its divisors is an integer number (4029431400).

Almost surely, 230198348421 is an apocalyptic number.

It is an amenable number.

30198348421 is a deficient number, since it is larger than the sum of its proper divisors (2037102779).

30198348421 is a wasteful number, since it uses less digits than its factorization.

30198348421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22385819.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 30198348421 in words is "thirty billion, one hundred ninety-eight million, three hundred forty-eight thousand, four hundred twenty-one".

Divisors: 1 19 71 1349 22385729 425328851 1589386759 30198348421