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68796170 = 2535319489
BaseRepresentation
bin1000001100110…
…11111100001010
311210110012121022
410012123330022
5120102434140
610454312442
71463520632
oct406337412
9153405538
1068796170
1135919643
121b058722
13113398c1
1491cb6c2
15608e0b5
hex419bf0a

68796170 has 16 divisors (see below), whose sum is σ = 124190280. Its totient is φ = 27439104.

The previous prime is 68796139. The next prime is 68796179. The reversal of 68796170 is 7169786.

It can be written as a sum of positive squares in 4 ways, for example, as 30813601 + 37982569 = 5551^2 + 6163^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68796179) 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 7 ways as a sum of consecutive naturals, for example, 6215 + ... + 13274.

Almost surely, 268796170 is an apocalyptic number.

68796170 is a deficient number, since it is larger than the sum of its proper divisors (55394110).

68796170 is a wasteful number, since it uses less digits than its factorization.

68796170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19849.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 68796170 is about 8294.3456643668. The cubic root of 68796170 is about 409.7523191748.

The spelling of 68796170 in words is "sixty-eight million, seven hundred ninety-six thousand, one hundred seventy".

Divisors: 1 2 5 10 353 706 1765 3530 19489 38978 97445 194890 6879617 13759234 34398085 68796170