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202200220 = 22510110011
BaseRepresentation
bin11000000110101…
…01010010011100
3112002110211120001
430003111102130
5403230401340
632021504044
75003450005
oct1403252234
9462424501
10202200220
11a4156022
1257872024
1332b77901
141cbd61ac
1512b4129a
hexc0d549c

202200220 has 12 divisors (see below), whose sum is σ = 424620504. Its totient is φ = 80880080.

The previous prime is 202200217. The next prime is 202200221. The reversal of 202200220 is 22002202.

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

It is a junction number, because it is equal to n+sod(n) for n = 202200197 and 202200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202200221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5054986 + ... + 5055025.

It is an arithmetic number, because the mean of its divisors is an integer number (35385042).

Almost surely, 2202200220 is an apocalyptic number.

202200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202200220 is an abundant number, since it is smaller than the sum of its proper divisors (222420284).

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

202200220 is a wasteful number, since it uses less digits than its factorization.

202200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110020 (or 10110018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 202200220 is about 14219.7123740250. The cubic root of 202200220 is about 586.9402255264.

Adding to 202200220 its reverse (22002202), we get a palindrome (224202422).

The spelling of 202200220 in words is "two hundred two million, two hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 10110011 20220022 40440044 50550055 101100110 202200220