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222142441 = 232419929
BaseRepresentation
bin11010011110110…
…01111111101001
3120111000000010211
431033121333221
5423332024231
634013141121
75335115413
oct1517317751
9514000124
10222142441
111044369a4
126248a7a1
133703a941
14217079b3
151477eeb1
hexd3d9fe9

222142441 has 6 divisors (see below), whose sum is σ = 232221290. Its totient is φ = 212483568.

The previous prime is 222142439. The next prime is 222142447. The reversal of 222142441 is 144241222.

It can be written as a sum of positive squares in only one way, i.e., 222129216 + 13225 = 14904^2 + 115^2 .

It is not a de Polignac number, because 222142441 - 21 = 222142439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222142447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209436 + ... + 210493.

Almost surely, 2222142441 is an apocalyptic number.

It is an amenable number.

222142441 is a deficient number, since it is larger than the sum of its proper divisors (10078849).

222142441 is an equidigital number, since it uses as much as digits as its factorization.

222142441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419975 (or 419952 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

The square root of 222142441 is about 14904.4436662359. The cubic root of 222142441 is about 605.6343695502.

Adding to 222142441 its reverse (144241222), we get a palindrome (366383663).

The spelling of 222142441 in words is "two hundred twenty-two million, one hundred forty-two thousand, four hundred forty-one".

Divisors: 1 23 529 419929 9658367 222142441