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136312142 = 2643105997
BaseRepresentation
bin10000001111111…
…11010101001110
3100111111101002212
420013333111032
5234343442032
621305350422
73243430331
oct1007772516
9314441085
10136312142
116aa4336a
1239798412
1322318895
1414164618
15be78bb2
hex81ff54e

136312142 has 8 divisors (see below), whose sum is σ = 204788136. Its totient is φ = 68049432.

The previous prime is 136312139. The next prime is 136312199. The reversal of 136312142 is 241213631.

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

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, 51713 + ... + 54284.

It is an arithmetic number, because the mean of its divisors is an integer number (25598517).

Almost surely, 2136312142 is an apocalyptic number.

136312142 is a deficient number, since it is larger than the sum of its proper divisors (68475994).

136312142 is a wasteful number, since it uses less digits than its factorization.

136312142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106642.

The product of its digits is 864, while the sum is 23.

The square root of 136312142 is about 11675.2790973064. The cubic root of 136312142 is about 514.6494513297.

Adding to 136312142 its reverse (241213631), we get a palindrome (377525773).

The spelling of 136312142 in words is "one hundred thirty-six million, three hundred twelve thousand, one hundred forty-two".

Divisors: 1 2 643 1286 105997 211994 68156071 136312142