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198428532054 = 2341806620049
BaseRepresentation
bin1011100011001101000…
…0110001110101010110
3200222011211021211201220
42320303100301311112
511222340201011204
6231053512031210
720223146456544
oct2706320616526
9628154254656
10198428532054
1177175808065
1232559392506
131593389619c
1498654d6d94
15526550e1d9
hex2e33431d56

198428532054 has 16 divisors (see below), whose sum is σ = 406536505200. Its totient is φ = 64529603840.

The previous prime is 198428532041. The next prime is 198428532061. The reversal of 198428532054 is 450235824891.

198428532054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 198428531988 and 198428532006.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 403309779 + ... + 403310270.

It is an arithmetic number, because the mean of its divisors is an integer number (25408531575).

Almost surely, 2198428532054 is an apocalyptic number.

198428532054 is an abundant number, since it is smaller than the sum of its proper divisors (208107973146).

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

198428532054 is a wasteful number, since it uses less digits than its factorization.

198428532054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806620095.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 198428532054 in words is "one hundred ninety-eight billion, four hundred twenty-eight million, five hundred thirty-two thousand, fifty-four".

Divisors: 1 2 3 6 41 82 123 246 806620049 1613240098 2419860147 4839720294 33071422009 66142844018 99214266027 198428532054