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6868688277 = 311208142069
BaseRepresentation
bin1100110010110011…
…11101110110010101
3122201200122111222010
412121121331312111
5103031341011102
63053323454433
7332132613153
oct63131756625
918650574863
106868688277
112a05217190
1213b8387419
1385604b3b9
144923383d3
152a302bd6c
hex19967dd95

6868688277 has 8 divisors (see below), whose sum is σ = 9990819360. Its totient is φ = 4162841360.

The previous prime is 6868688269. The next prime is 6868688287. The reversal of 6868688277 is 7728868686.

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

It is a cyclic number.

It is not a de Polignac number, because 6868688277 - 23 = 6868688269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868688207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104071002 + ... + 104071067.

It is an arithmetic number, because the mean of its divisors is an integer number (1248852420).

Almost surely, 26868688277 is an apocalyptic number.

It is an amenable number.

6868688277 is a deficient number, since it is larger than the sum of its proper divisors (3122131083).

6868688277 is a wasteful number, since it uses less digits than its factorization.

6868688277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208142083.

The product of its digits is 86704128, while the sum is 66.

The square root of 6868688277 is about 82877.5498974240. The cubic root of 6868688277 is about 1900.8941568828.

The spelling of 6868688277 in words is "six billion, eight hundred sixty-eight million, six hundred eighty-eight thousand, two hundred seventy-seven".

Divisors: 1 3 11 33 208142069 624426207 2289562759 6868688277