Search a number
-
+
68868858 = 2311478143
BaseRepresentation
bin1000001101011…
…01101011111010
311210120220022110
410012231223322
5120112300413
610500033150
71464242562
oct406555372
9153526273
1068868858
1135969213
121b0927b6
1311363a06
149209da2
1560a58c3
hex41adafa

68868858 has 8 divisors (see below), whose sum is σ = 137737728. Its totient is φ = 22956284.

The previous prime is 68868851. The next prime is 68868859. The reversal of 68868858 is 85886886.

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

68868858 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 68868798 and 68868807.

It is not an unprimeable number, because it can be changed into a prime (68868851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5739066 + ... + 5739077.

It is an arithmetic number, because the mean of its divisors is an integer number (17217216).

Almost surely, 268868858 is an apocalyptic number.

68868858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68868858 is a wasteful number, since it uses less digits than its factorization.

68868858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11478148.

The product of its digits is 5898240, while the sum is 57.

The square root of 68868858 is about 8298.7262878107. The cubic root of 68868858 is about 409.8965791100.

The spelling of 68868858 in words is "sixty-eight million, eight hundred sixty-eight thousand, eight hundred fifty-eight".

Divisors: 1 2 3 6 11478143 22956286 34434429 68868858