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68284484 = 22101173977
BaseRepresentation
bin1000001000111…
…11000001000100
311202111012200222
410010133001010
5114440100414
610435323512
71456260062
oct404370104
9152435628
1068284484
11355aa164
121aa50598
13111baa28
1490d7032
155edc68e
hex411f044

68284484 has 24 divisors (see below), whose sum is σ = 121502808. Its totient is φ = 33574400.

The previous prime is 68284477. The next prime is 68284583. The reversal of 68284484 is 48448286.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 58859584 + 9424900 = 7672^2 + 3070^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69404 + ... + 70380.

It is an arithmetic number, because the mean of its divisors is an integer number (5062617).

Almost surely, 268284484 is an apocalyptic number.

It is an amenable number.

68284484 is a deficient number, since it is larger than the sum of its proper divisors (53218324).

68284484 is a wasteful number, since it uses less digits than its factorization.

68284484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1253 counting only the distinct ones).

The product of its digits is 393216, while the sum is 44.

The square root of 68284484 is about 8263.4426239915. The cubic root of 68284484 is about 408.7339170758.

The spelling of 68284484 in words is "sixty-eight million, two hundred eighty-four thousand, four hundred eighty-four".

Divisors: 1 2 4 101 173 202 346 404 692 977 1954 3908 17473 34946 69892 98677 169021 197354 338042 394708 676084 17071121 34142242 68284484