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8188206142 = 2193112595521
BaseRepresentation
bin1111010000000111…
…00001110000111110
3210010122112222012011
413220003201300332
5113232140044032
63432301401434
7406624414054
oct75003416076
923118488164
108188206142
113522035516
12170626927a
13a0652b1bc
1457969a1d4
1532dcc5247
hex1e80e1c3e

8188206142 has 32 divisors (see below), whose sum is σ = 13358822400. Its totient is φ = 3749846400.

The previous prime is 8188206121. The next prime is 8188206151. The reversal of 8188206142 is 2416028818.

8188206142 is digitally balanced in base 5, 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 = 8188206095 and 8188206104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480342 + ... + 1485862.

It is an arithmetic number, because the mean of its divisors is an integer number (417463200).

Almost surely, 28188206142 is an apocalyptic number.

8188206142 is a deficient number, since it is larger than the sum of its proper divisors (5170616258).

8188206142 is a wasteful number, since it uses less digits than its factorization.

8188206142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6832.

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 8188206142 is about 90488.7072622877. The cubic root of 8188206142 is about 2015.5624363657.

The spelling of 8188206142 in words is "eight billion, one hundred eighty-eight million, two hundred six thousand, one hundred forty-two".

Divisors: 1 2 19 31 38 62 589 1178 1259 2518 5521 11042 23921 39029 47842 78058 104899 171151 209798 342302 741551 1483102 3251869 6503738 6950939 13901878 132067841 215479109 264135682 430958218 4094103071 8188206142