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68212463 = 1147131939
BaseRepresentation
bin1000001000011…
…01011011101111
311202100112220112
410010031123233
5114430244323
610434010235
71455540104
oct404153357
9152315815
1068212463
1135560040
121aa1697b
1311194007
1490b8aab
155ec6178
hex410d6ef

68212463 has 8 divisors (see below), whose sum is σ = 75997440. Its totient is φ = 60691480.

The previous prime is 68212447. The next prime is 68212481. The reversal of 68212463 is 36421286.

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 68212463 - 24 = 68212447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68212433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65453 + ... + 66486.

It is an arithmetic number, because the mean of its divisors is an integer number (9499680).

Almost surely, 268212463 is an apocalyptic number.

68212463 is a deficient number, since it is larger than the sum of its proper divisors (7784977).

68212463 is a wasteful number, since it uses less digits than its factorization.

68212463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131997.

The product of its digits is 13824, while the sum is 32.

The square root of 68212463 is about 8259.0836658796. The cubic root of 68212463 is about 408.5901666014.

The spelling of 68212463 in words is "sixty-eight million, two hundred twelve thousand, four hundred sixty-three".

Divisors: 1 11 47 517 131939 1451329 6201133 68212463