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68670535 = 514939199
BaseRepresentation
bin1000001011111…
…01010001000111
311210012211021011
410011331101013
5120034424120
610451503051
71462455433
oct405752107
9153184234
1068670535
113584320a
121abb7a87
13112c466b
1491979c3
156066c5a
hex417d447

68670535 has 8 divisors (see below), whose sum is σ = 82468800. Its totient is φ = 54893664.

The previous prime is 68670533. The next prime is 68670577. The reversal of 68670535 is 53507686.

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 68670535 - 21 = 68670533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68670533) 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, 2866 + ... + 12064.

It is an arithmetic number, because the mean of its divisors is an integer number (10308600).

Almost surely, 268670535 is an apocalyptic number.

68670535 is a deficient number, since it is larger than the sum of its proper divisors (13798265).

68670535 is a wasteful number, since it uses less digits than its factorization.

68670535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10697.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 68670535 is about 8286.7686705977. The cubic root of 68670535 is about 409.5027384136.

The spelling of 68670535 in words is "sixty-eight million, six hundred seventy thousand, five hundred thirty-five".

Divisors: 1 5 1493 7465 9199 45995 13734107 68670535