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222142103 = 355962417
BaseRepresentation
bin11010011110110…
…01111010010111
3120110222222200022
431033121322113
5423332021403
634013135355
75335114421
oct1517317227
9513888608
10222142103
11104436717
126248a55b
133703a741
1421707811
151477ed38
hexd3d9e97

222142103 has 4 divisors (see below), whose sum is σ = 222208080. Its totient is φ = 222076128.

The previous prime is 222142099. The next prime is 222142121. The reversal of 222142103 is 301241222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301241222 = 2150620611.

It is a cyclic number.

It is not a de Polignac number, because 222142103 - 22 = 222142099 is a prime.

It is a super-2 number, since 2×2221421032 = 98694227850525218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222142153) 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, 27650 + ... + 34767.

It is an arithmetic number, because the mean of its divisors is an integer number (55552020).

Almost surely, 2222142103 is an apocalyptic number.

222142103 is a deficient number, since it is larger than the sum of its proper divisors (65977).

222142103 is an equidigital number, since it uses as much as digits as its factorization.

222142103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65976.

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

The square root of 222142103 is about 14904.4323273314. The cubic root of 222142103 is about 605.6340623831.

Adding to 222142103 its reverse (301241222), we get a palindrome (523383325).

The spelling of 222142103 in words is "two hundred twenty-two million, one hundred forty-two thousand, one hundred three".

Divisors: 1 3559 62417 222142103