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202132220 = 22510106611
BaseRepresentation
bin11000000110001…
…00101011111100
3112002100101021112
430003010223330
5403221212340
632020221152
75003044523
oct1403045374
9462311245
10202132220
11a4109a24
125783a7b8
1332b52984
141cbb94ba
1512b2b065
hexc0c4afc

202132220 has 12 divisors (see below), whose sum is σ = 424477704. Its totient is φ = 80852880.

The previous prime is 202132199. The next prime is 202132283. The reversal of 202132220 is 22231202.

It is a super-3 number, since 3×2021322203 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202132195 and 202132204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5053286 + ... + 5053325.

It is an arithmetic number, because the mean of its divisors is an integer number (35373142).

Almost surely, 2202132220 is an apocalyptic number.

202132220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202132220 is an abundant number, since it is smaller than the sum of its proper divisors (222345484).

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

202132220 is a wasteful number, since it uses less digits than its factorization.

202132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106620 (or 10106618 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 202132220 is about 14217.3211260068. The cubic root of 202132220 is about 586.8744220861.

Adding to 202132220 its reverse (22231202), we get a palindrome (224363422).

The spelling of 202132220 in words is "two hundred two million, one hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 10106611 20213222 40426444 50533055 101066110 202132220