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68206963 = 1122927077
BaseRepresentation
bin1000001000011…
…00000101110011
311202100021100211
410010030011303
5114430110323
610433524551
71455515056
oct404140563
9152307324
1068206963
11355569a0
121aa13757
1311191666
1490b6a9d
155ec470d
hex410c173

68206963 has 8 divisors (see below), whose sum is σ = 74735280. Its totient is φ = 61733280.

The previous prime is 68206961. The next prime is 68206969. The reversal of 68206963 is 36960286.

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 68206963 - 21 = 68206961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68206961) 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, 11020 + ... + 16057.

It is an arithmetic number, because the mean of its divisors is an integer number (9341910).

Almost surely, 268206963 is an apocalyptic number.

68206963 is a deficient number, since it is larger than the sum of its proper divisors (6528317).

68206963 is a wasteful number, since it uses less digits than its factorization.

68206963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27317.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 68206963 is about 8258.7506924474. The cubic root of 68206963 is about 408.5791847064.

It can be divided in two parts, 68206 and 963, that added together give a square (69169 = 2632).

The spelling of 68206963 in words is "sixty-eight million, two hundred six thousand, nine hundred sixty-three".

Divisors: 1 11 229 2519 27077 297847 6200633 68206963