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142310222 = 2322122091
BaseRepresentation
bin10000111101101…
…11101101001110
3100220210002220222
420132313231032
5242412411342
622042111342
73345421415
oct1036675516
9326702828
10142310222
117336a85a
123b7ab552
1323638a42
1414c8647c
15c760ed2
hex87b7b4e

142310222 has 8 divisors (see below), whose sum is σ = 213541272. Its totient is φ = 71129800.

The previous prime is 142310167. The next prime is 142310227. The reversal of 142310222 is 222013241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 142310222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142310227) 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, 4604 + ... + 17487.

It is an arithmetic number, because the mean of its divisors is an integer number (26692659).

Almost surely, 2142310222 is an apocalyptic number.

142310222 is a deficient number, since it is larger than the sum of its proper divisors (71231050).

142310222 is a wasteful number, since it uses less digits than its factorization.

142310222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25314.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142310222 is about 11929.3848123028. The cubic root of 142310222 is about 522.0899885472.

Adding to 142310222 its reverse (222013241), we get a palindrome (364323463).

The spelling of 142310222 in words is "one hundred forty-two million, three hundred ten thousand, two hundred twenty-two".

Divisors: 1 2 3221 6442 22091 44182 71155111 142310222