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11200202020 = 225780001443
BaseRepresentation
bin10100110111001010…
…11000010100100100
31001220120011012210001
422123211120110210
5140414222431040
65051215111044
7544360101130
oct123345302444
931816135701
1011200202020
114828249607
122206b12484
131096552897
147837063c0
1545843859a
hex29b958524

11200202020 has 24 divisors (see below), whose sum is σ = 26880485184. Its totient is φ = 3840069216.

The previous prime is 11200202017. The next prime is 11200202029. The reversal of 11200202020 is 2020200211.

It is a Harshad number since it is a multiple of its sum of digits (10).

11200202020 is a modest number, since divided by 202020 gives 11200 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11200201988 and 11200202006.

It is not an unprimeable number, because it can be changed into a prime (11200202029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40000582 + ... + 40000861.

It is an arithmetic number, because the mean of its divisors is an integer number (1120020216).

Almost surely, 211200202020 is an apocalyptic number.

11200202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11200202020 is an abundant number, since it is smaller than the sum of its proper divisors (15680283164).

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

11200202020 is a wasteful number, since it uses less digits than its factorization.

11200202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80001459 (or 80001457 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 11200202020 its reverse (2020200211), we get a palindrome (13220402231).

The spelling of 11200202020 in words is "eleven billion, two hundred million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 80001443 160002886 320005772 400007215 560010101 800014430 1120020202 1600028860 2240040404 2800050505 5600101010 11200202020