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136742 = 268371
BaseRepresentation
bin100001011000100110
320221120112
4201120212
513333432
62533022
71106444
oct413046
9227515
10136742
1193811
1267172
134a318
1437b94
152a7b2
hex21626

136742 has 4 divisors (see below), whose sum is σ = 205116. Its totient is φ = 68370.

The previous prime is 136739. The next prime is 136751. The reversal of 136742 is 247631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247631 = 298539.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34184 + ... + 34187.

It is an arithmetic number, because the mean of its divisors is an integer number (51279).

2136742 is an apocalyptic number.

136742 is a deficient number, since it is larger than the sum of its proper divisors (68374).

136742 is an equidigital number, since it uses as much as digits as its factorization.

136742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68373.

The product of its digits is 1008, while the sum is 23.

The square root of 136742 is about 369.7864248455. The cubic root of 136742 is about 51.5189863071.

Subtracting 136742 from its reverse (247631), we obtain a square (110889 = 3332).

It can be divided in two parts, 136 and 742, that added together give a palindrome (878).

The spelling of 136742 in words is "one hundred thirty-six thousand, seven hundred forty-two".

Divisors: 1 2 68371 136742