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222131141 = 239929419
BaseRepresentation
bin11010011110101…
…11001111000101
3120110222102122022
431033113033011
5423331144031
634013012525
75335040441
oct1517271705
9513872568
10222131141
11104429461
1262484145
133703575b
1421703821
151477b97b
hexd3d73c5

222131141 has 4 divisors (see below), whose sum is σ = 223060800. Its totient is φ = 221201484.

The previous prime is 222131131. The next prime is 222131149. The reversal of 222131141 is 141131222.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-222131141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222131149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464471 + ... + 464948.

It is an arithmetic number, because the mean of its divisors is an integer number (55765200).

Almost surely, 2222131141 is an apocalyptic number.

It is an amenable number.

222131141 is a deficient number, since it is larger than the sum of its proper divisors (929659).

222131141 is an equidigital number, since it uses as much as digits as its factorization.

222131141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929658.

The product of its digits is 96, while the sum is 17.

The square root of 222131141 is about 14904.0645798386. The cubic root of 222131141 is about 605.6241001867.

Adding to 222131141 its reverse (141131222), we get a palindrome (363262363).

The spelling of 222131141 in words is "two hundred twenty-two million, one hundred thirty-one thousand, one hundred forty-one".

Divisors: 1 239 929419 222131141