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68480426 = 2729315441
BaseRepresentation
bin1000001010011…
…10110110101010
311202212011111002
410011032312222
5120012333201
610443435002
71461034250
oct405166652
9152764432
1068480426
11357233a3
121ab25a62
1311258c81
1491485d0
15602a76b
hex414edaa

68480426 has 32 divisors (see below), whose sum is σ = 125383680. Its totient is φ = 27417600.

The previous prime is 68480393. The next prime is 68480429. The reversal of 68480426 is 62408486.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68480426.

It is not an unprimeable number, because it can be changed into a prime (68480429) 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 15 ways as a sum of consecutive naturals, for example, 9866 + ... + 15306.

It is an arithmetic number, because the mean of its divisors is an integer number (3918240).

Almost surely, 268480426 is an apocalyptic number.

68480426 is a deficient number, since it is larger than the sum of its proper divisors (56903254).

68480426 is a wasteful number, since it uses less digits than its factorization.

68480426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510.

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 68480426 is about 8275.2900855499. The cubic root of 68480426 is about 409.1244970641.

The spelling of 68480426 in words is "sixty-eight million, four hundred eighty thousand, four hundred twenty-six".

Divisors: 1 2 7 14 29 31 58 62 203 217 406 434 899 1798 5441 6293 10882 12586 38087 76174 157789 168671 315578 337342 1104523 1180697 2209046 2361394 4891459 9782918 34240213 68480426