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68810982 = 2311468497
BaseRepresentation
bin1000001100111…
…11100011100110
311210110221220220
410012133203212
5120103422412
610454505210
71463612052
oct406374346
9153427826
1068810982
1135929789
121b065206
1311343576
1491d2c62
15609368c
hex419f8e6

68810982 has 8 divisors (see below), whose sum is σ = 137621976. Its totient is φ = 22936992.

The previous prime is 68810981. The next prime is 68810993. The reversal of 68810982 is 28901886.

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

68810982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68810981) 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, 5734243 + ... + 5734254.

It is an arithmetic number, because the mean of its divisors is an integer number (17202747).

Almost surely, 268810982 is an apocalyptic number.

68810982 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.

68810982 is a wasteful number, since it uses less digits than its factorization.

68810982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11468502.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 68810982 is about 8295.2385137499. The cubic root of 68810982 is about 409.7817239892.

The spelling of 68810982 in words is "sixty-eight million, eight hundred ten thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 11468497 22936994 34405491 68810982