Search a number
8122018 = 237412677
BaseRepresentation
bin11110111110111010100010
3120021122022111
4132332322202
54034401033
6450025534
7126015232
oct36767242
916248274
108122018
114648213
1228782aa
1318b4b38
141115cc2
15aa67cd
hex7beea2

8122018 has 16 divisors (see below), whose sum is σ = 12822264. Its totient is φ = 3853440.

The previous prime is 8122007. The next prime is 8122021. The reversal of 8122018 is 8102218.

It can be divided in two parts, 8 and 122018, that multiplied together give a square (976144 = 9882).

It can be written as a sum of positive squares in 4 ways, for example, as 4173849 + 3948169 = 2043^2 + 1987^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8122018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1696 + ... + 4372.

Almost surely, 28122018 is an apocalyptic number.

8122018 is a deficient number, since it is larger than the sum of its proper divisors (4700246).

8122018 is a wasteful number, since it uses less digits than its factorization.

8122018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 8122018 is about 2849.9154373420. The cubic root of 8122018 is about 201.0116904498.

The spelling of 8122018 in words is "eight million, one hundred twenty-two thousand, eighteen".