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2018228838 = 232417139169
BaseRepresentation
bin111100001001011…
…1011101001100110
312012122122122111020
41320102323221212
513113131310323
6532133352010
7101004443043
oct17022735146
95178578436
102018228838
1194626821a
12483a98606
1326218a562
141520821ca
15bc2b3ae3
hex784bba66

2018228838 has 16 divisors (see below), whose sum is σ = 4038156720. Its totient is φ = 672459776.

The previous prime is 2018228827. The next prime is 2018228843. The reversal of 2018228838 is 8388228102.

It is a self number, because there is not a number n which added to its sum of digits gives 2018228838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55083 + ... + 84086.

It is an arithmetic number, because the mean of its divisors is an integer number (252384795).

Almost surely, 22018228838 is an apocalyptic number.

2018228838 is an abundant number, since it is smaller than the sum of its proper divisors (2019927882).

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

2018228838 is a wasteful number, since it uses less digits than its factorization.

2018228838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141591.

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 2018228838 is about 44924.7018687937. The cubic root of 2018228838 is about 1263.7372951044.

The spelling of 2018228838 in words is "two billion, eighteen million, two hundred twenty-eight thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 2417 4834 7251 14502 139169 278338 417507 835014 336371473 672742946 1009114419 2018228838