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68080883 = 135236991
BaseRepresentation
bin1000000111011…
…01010011110011
311202002212102012
410003231103303
5114412042013
610431113135
71454451353
oct403552363
9152085365
1068080883
11354801a2
121a9727ab
1311149160
149082b63
155e9c1a8
hex40ed4f3

68080883 has 4 divisors (see below), whose sum is σ = 73317888. Its totient is φ = 62843880.

The previous prime is 68080879. The next prime is 68080889. The reversal of 68080883 is 38808086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38808086 = 219404043.

It is a cyclic number.

It is not a de Polignac number, because 68080883 - 22 = 68080879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68080883.

It is not an unprimeable number, because it can be changed into a prime (68080889) 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, 2618483 + ... + 2618508.

It is an arithmetic number, because the mean of its divisors is an integer number (18329472).

Almost surely, 268080883 is an apocalyptic number.

68080883 is a deficient number, since it is larger than the sum of its proper divisors (5237005).

68080883 is a wasteful number, since it uses less digits than its factorization.

68080883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237004.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 68080883 is about 8251.1140459940. The cubic root of 68080883 is about 408.3272776926.

The spelling of 68080883 in words is "sixty-eight million, eighty thousand, eight hundred eighty-three".

Divisors: 1 13 5236991 68080883