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68413825198 = 2196160748623
BaseRepresentation
bin111111101101110010…
…000010000010101110
320112120212200102002201
4333231302002002232
52110102414401243
651232345412114
74641233630215
oct775562020256
9215525612081
1068413825198
1127017903504
121131379a03a
1365b3942594
1434500c007c
151ba624304d
hexfedc820ae

68413825198 has 32 divisors (see below), whose sum is σ = 109975818240. Its totient is φ = 31822126560.

The previous prime is 68413825187. The next prime is 68413825231. The reversal of 68413825198 is 89152831486.

It is a happy number.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 15 ways as a sum of consecutive naturals, for example, 1382715 + ... + 1431337.

It is an arithmetic number, because the mean of its divisors is an integer number (3436744320).

Almost surely, 268413825198 is an apocalyptic number.

68413825198 is a deficient number, since it is larger than the sum of its proper divisors (41561993042).

68413825198 is a wasteful number, since it uses less digits than its factorization.

68413825198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49312.

The product of its digits is 3317760, while the sum is 55.

The spelling of 68413825198 in words is "sixty-eight billion, four hundred thirteen million, eight hundred twenty-five thousand, one hundred ninety-eight".

Divisors: 1 2 19 38 61 122 607 1159 1214 2318 11533 23066 37027 48623 74054 97246 703513 923837 1407026 1847674 2966003 5932006 29514161 56354057 59028322 112708114 560769059 1121538118 1800363821 3600727642 34206912599 68413825198