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68673335 = 513734667
BaseRepresentation
bin1000001011111…
…01111100110111
311210012222002212
410011331330313
5120040021320
610451524035
71462466543
oct405757467
9153188085
1068673335
1135845325
121abb961b
13112c5a13
149198a23
1560679c5
hex417df37

68673335 has 4 divisors (see below), whose sum is σ = 82408008. Its totient is φ = 54938664.

The previous prime is 68673329. The next prime is 68673343. The reversal of 68673335 is 53337686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53337686 = 226668843.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68673335 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68673292 and 68673301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6867329 + ... + 6867338.

It is an arithmetic number, because the mean of its divisors is an integer number (20602002).

Almost surely, 268673335 is an apocalyptic number.

68673335 is a deficient number, since it is larger than the sum of its proper divisors (13734673).

68673335 is a wasteful number, since it uses less digits than its factorization.

68673335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13734672.

The product of its digits is 272160, while the sum is 41.

The square root of 68673335 is about 8286.9376128942. The cubic root of 68673335 is about 409.5083040811.

The spelling of 68673335 in words is "sixty-eight million, six hundred seventy-three thousand, three hundred thirty-five".

Divisors: 1 5 13734667 68673335