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2020020228 = 223333895519
BaseRepresentation
bin111100001100111…
…0001000000000100
312012210000122211000
41320121301000010
513114111121403
6532240013300
7101025613542
oct17031610004
95183018730
102020020228
11947281106
12484601230
13262666a55
141523cad92
15bc5197a3
hex78671004

2020020228 has 48 divisors (see below), whose sum is σ = 5239584000. Its totient is φ = 673019424.

The previous prime is 2020020227. The next prime is 2020020239. The reversal of 2020020228 is 8220200202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2020020228.

It is not an unprimeable number, because it can be changed into a prime (2020020227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363253 + ... + 368771.

It is an arithmetic number, because the mean of its divisors is an integer number (109158000).

Almost surely, 22020020228 is an apocalyptic number.

It is an amenable number.

2020020228 is an abundant number, since it is smaller than the sum of its proper divisors (3219563772).

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

2020020228 is a wasteful number, since it uses less digits than its factorization.

2020020228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8921 (or 8913 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2020020228 is about 44944.6351414716. The cubic root of 2020020228 is about 1264.1110843795. Note that the first 3 decimals are identical.

The spelling of 2020020228 in words is "two billion, twenty million, twenty thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 3389 5519 6778 10167 11038 13556 16557 20334 22076 30501 33114 40668 49671 61002 66228 91503 99342 122004 149013 183006 198684 298026 366012 596052 18703891 37407782 56111673 74815564 112223346 168335019 224446692 336670038 505005057 673340076 1010010114 2020020228