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68126138 = 2231481003
BaseRepresentation
bin1000000111110…
…00010110111010
311202012011111022
410003320112322
5114420014023
610432102442
71455030323
oct403702672
9152164438
1068126138
11355011a3
121a994a22
1311163932
14909544a
155eaa7c8
hex40f85ba

68126138 has 8 divisors (see below), whose sum is σ = 106632288. Its totient is φ = 32582044.

The previous prime is 68126131. The next prime is 68126141. The reversal of 68126138 is 83162186.

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

It is a junction number, because it is equal to n+sod(n) for n = 68126098 and 68126107.

It is not an unprimeable number, because it can be changed into a prime (68126131) 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 3 ways as a sum of consecutive naturals, for example, 740456 + ... + 740547.

It is an arithmetic number, because the mean of its divisors is an integer number (13329036).

Almost surely, 268126138 is an apocalyptic number.

68126138 is a deficient number, since it is larger than the sum of its proper divisors (38506150).

68126138 is a wasteful number, since it uses less digits than its factorization.

68126138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481028.

The product of its digits is 13824, while the sum is 35.

The square root of 68126138 is about 8253.8559473739. The cubic root of 68126138 is about 408.4177326397.

The spelling of 68126138 in words is "sixty-eight million, one hundred twenty-six thousand, one hundred thirty-eight".

Divisors: 1 2 23 46 1481003 2962006 34063069 68126138