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2012202020 = 225724713883
BaseRepresentation
bin111011111101111…
…1100010000100100
312012020022110020202
41313323330100210
513110110431040
6531400250032
7100602302123
oct16773742044
95166273222
102012202020
11942921184
12481a70918
13260b5a2aa
14151353aba
15bb9c3015
hex77efc424

2012202020 has 24 divisors (see below), whose sum is σ = 4226511744. Its totient is φ = 804711776.

The previous prime is 2012202019. The next prime is 2012202041. The reversal of 2012202020 is 202022102.

It is a junction number, because it is equal to n+sod(n) for n = 2012201992 and 2012202010.

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, 137999 + ... + 151881.

It is an arithmetic number, because the mean of its divisors is an integer number (176104656).

Almost surely, 22012202020 is an apocalyptic number.

2012202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012202020 is an abundant number, since it is smaller than the sum of its proper divisors (2214309724).

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

2012202020 is a wasteful number, since it uses less digits than its factorization.

2012202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21139 (or 21137 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2012202020 is about 44857.5748341348. The cubic root of 2012202020 is about 1262.4781203279.

Adding to 2012202020 its reverse (202022102), we get a palindrome (2214224122).

The spelling of 2012202020 in words is "two billion, twelve million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 7247 13883 14494 27766 28988 36235 55532 69415 72470 138830 144940 277660 100610101 201220202 402440404 503050505 1006101010 2012202020