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222189141 = 374063047
BaseRepresentation
bin11010011111001…
…01011001010101
3120111002101012110
431033211121111
5423340023031
634014141233
75335401516
oct1517453125
9514071173
10222189141
11104468a99
12624b1819
1337055c85
142171aa0d
151478dc46
hexd3e5655

222189141 has 4 divisors (see below), whose sum is σ = 296252192. Its totient is φ = 148126092.

The previous prime is 222189139. The next prime is 222189161. The reversal of 222189141 is 141981222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 222189141 - 21 = 222189139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222189099 and 222189108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222189161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37031521 + ... + 37031526.

It is an arithmetic number, because the mean of its divisors is an integer number (74063048).

Almost surely, 2222189141 is an apocalyptic number.

It is an amenable number.

222189141 is a deficient number, since it is larger than the sum of its proper divisors (74063051).

222189141 is an equidigital number, since it uses as much as digits as its factorization.

222189141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74063050.

The product of its digits is 2304, while the sum is 30.

The square root of 222189141 is about 14906.0102307760. The cubic root of 222189141 is about 605.6768065007.

The spelling of 222189141 in words is "two hundred twenty-two million, one hundred eighty-nine thousand, one hundred forty-one".

Divisors: 1 3 74063047 222189141