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68280876 = 22326832777
BaseRepresentation
bin1000001000111…
…10001000101100
311202111000202100
410010132020230
5114434442001
610435255100
71456243416
oct404361054
9152430670
1068280876
11355a7484
121aa4a490
13111b91b1
1490d59b6
155edb586
hex411e22c

68280876 has 36 divisors (see below), whose sum is σ = 172913832. Its totient is φ = 22718784.

The previous prime is 68280869. The next prime is 68280881. The reversal of 68280876 is 67808286.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23200 + ... + 25976.

It is an arithmetic number, because the mean of its divisors is an integer number (4803162).

Almost surely, 268280876 is an apocalyptic number.

It is an amenable number.

68280876 is an abundant number, since it is smaller than the sum of its proper divisors (104632956).

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

68280876 is a wasteful number, since it uses less digits than its factorization.

68280876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470 (or 3465 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 68280876 is about 8263.2243101588. The cubic root of 68280876 is about 408.7267180859.

The spelling of 68280876 in words is "sixty-eight million, two hundred eighty thousand, eight hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 36 683 1366 2049 2732 2777 4098 5554 6147 8196 8331 11108 12294 16662 24588 24993 33324 49986 99972 1896691 3793382 5690073 7586764 11380146 17070219 22760292 34140438 68280876