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142313223 = 3133649057
BaseRepresentation
bin10000111101110…
…00011100000111
3100220210021001010
420132320130013
5242413010343
622042133303
73345433233
oct1036703407
9326707033
10142313223
1173372038
123b7b1233
132363a210
1414c875c3
15c761d33
hex87b8707

142313223 has 8 divisors (see below), whose sum is σ = 204347248. Its totient is φ = 87577344.

The previous prime is 142313221. The next prime is 142313231. The reversal of 142313223 is 322313241.

142313223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 142313223 - 21 = 142313221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142313223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142313221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1824490 + ... + 1824567.

It is an arithmetic number, because the mean of its divisors is an integer number (25543406).

Almost surely, 2142313223 is an apocalyptic number.

142313223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142313223 is a deficient number, since it is larger than the sum of its proper divisors (62034025).

142313223 is a wasteful number, since it uses less digits than its factorization.

142313223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649073.

The product of its digits is 864, while the sum is 21.

The square root of 142313223 is about 11929.5105934820. The cubic root of 142313223 is about 522.0936584196.

Adding to 142313223 its reverse (322313241), we get a palindrome (464626464).

The spelling of 142313223 in words is "one hundred forty-two million, three hundred thirteen thousand, two hundred twenty-three".

Divisors: 1 3 13 39 3649057 10947171 47437741 142313223