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668007386 = 23307100999
BaseRepresentation
bin100111110100001…
…111101111011010
31201112222021212022
4213310033233122
52332002214021
6150141414442
722360653254
oct4764175732
91645867768
10668007386
11313088922
1216786a422
13a851a457
1464a0acd4
153d9a31ab
hex27d0fbda

668007386 has 8 divisors (see below), whose sum is σ = 1002324000. Its totient is φ = 333899388.

The previous prime is 668007341. The next prime is 668007397. The reversal of 668007386 is 683700866.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43886 + ... + 57113.

It is an arithmetic number, because the mean of its divisors is an integer number (125290500).

Almost surely, 2668007386 is an apocalyptic number.

668007386 is a deficient number, since it is larger than the sum of its proper divisors (334316614).

668007386 is a wasteful number, since it uses less digits than its factorization.

668007386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104308.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 668007386 is about 25845.8388527051. The cubic root of 668007386 is about 874.1656857121.

The spelling of 668007386 in words is "six hundred sixty-eight million, seven thousand, three hundred eighty-six".

Divisors: 1 2 3307 6614 100999 201998 334003693 668007386