Search a number
-
+
68761822 = 234380911
BaseRepresentation
bin1000001100100…
…11100011011110
311210101110111011
410012103203132
5120100334242
610453445434
71463315533
oct406234336
9153343434
1068761822
11358a5858
121b04087a
131132708c
1491bcd8a
156083d17
hex41938de

68761822 has 4 divisors (see below), whose sum is σ = 103142736. Its totient is φ = 34380910.

The previous prime is 68761811. The next prime is 68761831. The reversal of 68761822 is 22816786.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22816786 = 211408393.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17190454 + ... + 17190457.

It is an arithmetic number, because the mean of its divisors is an integer number (25785684).

Almost surely, 268761822 is an apocalyptic number.

68761822 is a deficient number, since it is larger than the sum of its proper divisors (34380914).

68761822 is a wasteful number, since it uses less digits than its factorization.

68761822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34380913.

The product of its digits is 64512, while the sum is 40.

The square root of 68761822 is about 8292.2748386676. The cubic root of 68761822 is about 409.6841152056.

The spelling of 68761822 in words is "sixty-eight million, seven hundred sixty-one thousand, eight hundred twenty-two".

Divisors: 1 2 34380911 68761822