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202000220 = 22510100011
BaseRepresentation
bin11000000101001…
…00011101011100
3112002002200012122
430002210131130
5403203001340
632013322112
75001654632
oct1402443534
9462080178
10202000220
11a4029834
1257796338
1332b07876
141cb83352
1512b01db5
hexc0a475c

202000220 has 12 divisors (see below), whose sum is σ = 424200504. Its totient is φ = 80800080.

The previous prime is 202000193. The next prime is 202000259. The reversal of 202000220 is 22000202.

It is a junction number, because it is equal to n+sod(n) for n = 202000198 and 202000207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5049986 + ... + 5050025.

It is an arithmetic number, because the mean of its divisors is an integer number (35350042).

Almost surely, 2202000220 is an apocalyptic number.

202000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202000220 is an abundant number, since it is smaller than the sum of its proper divisors (222200284).

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

202000220 is a wasteful number, since it uses less digits than its factorization.

202000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100020 (or 10100018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 202000220 is about 14212.6781431228. The cubic root of 202000220 is about 586.7466438544.

Adding to 202000220 its reverse (22000202), we get a palindrome (224000422).

The spelling of 202000220 in words is "two hundred two million, two hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 10100011 20200022 40400044 50500055 101000110 202000220