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222832420 = 22511141621
BaseRepresentation
bin11010100100000…
…10011100100100
3120112022001121121
431102002130210
5424021114140
634040023324
75344021126
oct1522023444
9515261547
10222832420
11104868328
1262761b44
133721ca05
1421847216
151486964a
hexd482724

222832420 has 12 divisors (see below), whose sum is σ = 467948124. Its totient is φ = 89132960.

The previous prime is 222832409. The next prime is 222832459. The reversal of 222832420 is 24238222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131744484 + 91087936 = 11478^2 + 9544^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5570791 + ... + 5570830.

It is an arithmetic number, because the mean of its divisors is an integer number (38995677).

Almost surely, 2222832420 is an apocalyptic number.

222832420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222832420 is an abundant number, since it is smaller than the sum of its proper divisors (245115704).

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

222832420 is a wasteful number, since it uses less digits than its factorization.

222832420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11141630 (or 11141628 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 222832420 is about 14927.5724751213. The cubic root of 222832420 is about 606.2607590821.

The spelling of 222832420 in words is "two hundred twenty-two million, eight hundred thirty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 11141621 22283242 44566484 55708105 111416210 222832420