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222142043 = 17371791973
BaseRepresentation
bin11010011110110…
…01111001011011
3120110222222121002
431033121321123
5423332021133
634013135215
75335114304
oct1517317133
9513888532
10222142043
11104436672
126248a50b
133703a6c6
14217077ab
151477ece8
hexd3d9e5b

222142043 has 16 divisors (see below), whose sum is σ = 243038880. Its totient is φ = 202185216.

The previous prime is 222142007. The next prime is 222142049. The reversal of 222142043 is 340241222.

It is not a de Polignac number, because 222142043 - 212 = 222137947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222142049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111605 + ... + 113577.

It is an arithmetic number, because the mean of its divisors is an integer number (15189930).

Almost surely, 2222142043 is an apocalyptic number.

222142043 is a deficient number, since it is larger than the sum of its proper divisors (20896837).

222142043 is a wasteful number, since it uses less digits than its factorization.

222142043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 222142043 is about 14904.4303145072. The cubic root of 222142043 is about 605.6340078564.

Adding to 222142043 its reverse (340241222), we get a palindrome (562383265).

The spelling of 222142043 in words is "two hundred twenty-two million, one hundred forty-two thousand, forty-three".

Divisors: 1 17 37 179 629 1973 3043 6623 33541 73001 112591 353167 1241017 6003839 13067179 222142043