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68066330 = 256806633
BaseRepresentation
bin1000000111010…
…01110000011010
311202002010110012
410003221300122
5114411110310
610430521522
71454361053
oct403516032
9152063405
1068066330
1135470272
121a9662a2
1311142647
14907b72a
155e97c05
hex40e9c1a

68066330 has 8 divisors (see below), whose sum is σ = 122519412. Its totient is φ = 27226528.

The previous prime is 68066309. The next prime is 68066371. The reversal of 68066330 is 3366086.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67749361 + 316969 = 8231^2 + 563^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3403307 + ... + 3403326.

Almost surely, 268066330 is an apocalyptic number.

68066330 is a deficient number, since it is larger than the sum of its proper divisors (54453082).

68066330 is a wasteful number, since it uses less digits than its factorization.

68066330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6806640.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 68066330 is about 8250.2321179467. The cubic root of 68066330 is about 408.2981808787.

The spelling of 68066330 in words is "sixty-eight million, sixty-six thousand, three hundred thirty".

Divisors: 1 2 5 10 6806633 13613266 34033165 68066330