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30198789122 = 253284894237
BaseRepresentation
bin11100000111111111…
…001111010000000010
32212221121100102210012
4130013333033100002
5443321342222442
621512332504522
72116232320655
oct340777172002
985847312705
1030198789122
111189747a267
125a2961b142
132b036171b8
1416669d389c
15bbb2e4582
hex707fcf402

30198789122 has 8 divisors (see below), whose sum is σ = 46152866556. Its totient is φ = 14814500272.

The previous prime is 30198789079. The next prime is 30198789133. The reversal of 30198789122 is 22198789103.

It can be written as a sum of positive squares in 2 ways, for example, as 28422250921 + 1776538201 = 168589^2 + 42149^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142447013 + ... + 142447224.

Almost surely, 230198789122 is an apocalyptic number.

30198789122 is a deficient number, since it is larger than the sum of its proper divisors (15954077434).

30198789122 is a wasteful number, since it uses less digits than its factorization.

30198789122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284894292.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 30198789122 in words is "thirty billion, one hundred ninety-eight million, seven hundred eighty-nine thousand, one hundred twenty-two".

Divisors: 1 2 53 106 284894237 569788474 15099394561 30198789122