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68080113 = 327564457
BaseRepresentation
bin1000000111011…
…01000111110001
311202002211100200
410003231013301
5114412030423
610431105413
71454446203
oct403550761
9152084320
1068080113
113547a662
121a972269
13111489ba
149082773
155e9bd43
hex40ed1f1

68080113 has 6 divisors (see below), whose sum is σ = 98337954. Its totient is φ = 45386736.

The previous prime is 68080109. The next prime is 68080147. The reversal of 68080113 is 31108086.

It can be written as a sum of positive squares in only one way, i.e., 64112049 + 3968064 = 8007^2 + 1992^2 .

It is not a de Polignac number, because 68080113 - 22 = 68080109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68080153) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 3782220 + ... + 3782237.

It is an arithmetic number, because the mean of its divisors is an integer number (16389659).

Almost surely, 268080113 is an apocalyptic number.

It is an amenable number.

68080113 is a deficient number, since it is larger than the sum of its proper divisors (30257841).

68080113 is a wasteful number, since it uses less digits than its factorization.

68080113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7564463 (or 7564460 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 68080113 is about 8251.0673854963. The cubic root of 68080113 is about 408.3257382825.

Adding to 68080113 its reverse (31108086), we get a palindrome (99188199).

The spelling of 68080113 in words is "sixty-eight million, eighty thousand, one hundred thirteen".

Divisors: 1 3 9 7564457 22693371 68080113