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223140142 = 2195872109
BaseRepresentation
bin11010100110011…
…01100100101110
3120112212200201201
431103031210232
5424110441032
634050400114
75346442231
oct1523154456
9515780651
10223140142
11104a58545
126289003a
13372c9ab4
14218c7418
15148ca8e7
hexd4cd92e

223140142 has 8 divisors (see below), whose sum is σ = 352326600. Its totient is φ = 105697944.

The previous prime is 223140131. The next prime is 223140157. The reversal of 223140142 is 241041322.

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

It is a super-3 number, since 3×2231401423 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2936017 + ... + 2936092.

It is an arithmetic number, because the mean of its divisors is an integer number (44040825).

Almost surely, 2223140142 is an apocalyptic number.

223140142 is a deficient number, since it is larger than the sum of its proper divisors (129186458).

223140142 is a wasteful number, since it uses less digits than its factorization.

223140142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872130.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 223140142 is about 14937.8760873158. The cubic root of 223140142 is about 606.5397040730.

Adding to 223140142 its reverse (241041322), we get a palindrome (464181464).

The spelling of 223140142 in words is "two hundred twenty-three million, one hundred forty thousand, one hundred forty-two".

Divisors: 1 2 19 38 5872109 11744218 111570071 223140142