Base | Representation |
---|---|
bin | 100111110100100… |
… | …010010000110111 |
3 | 1201120010010221021 |
4 | 213310202100313 |
5 | 2332012131010 |
6 | 150143202011 |
7 | 22361420410 |
oct | 4764422067 |
9 | 1646103837 |
10 | 668083255 |
11 | 31312a924 |
12 | 1678a6307 |
13 | a8545b48 |
14 | 64a2a807 |
15 | 3d9ba8da |
hex | 27d22437 |
668083255 has 32 divisors (see below), whose sum is σ = 986618880. Its totient is φ = 423836160.
The previous prime is 668083253. The next prime is 668083261. The reversal of 668083255 is 552380866.
It is a happy number.
668083255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 668083255 - 21 = 668083253 is a prime.
It is a super-2 number, since 2×6680832552 = 892670471222790050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (668083253) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25590 + ... + 44620.
It is an arithmetic number, because the mean of its divisors is an integer number (30831840).
Almost surely, 2668083255 is an apocalyptic number.
668083255 is a deficient number, since it is larger than the sum of its proper divisors (318535625).
668083255 is a wasteful number, since it uses less digits than its factorization.
668083255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19119.
The product of its (nonzero) digits is 345600, while the sum is 43.
The square root of 668083255 is about 25847.3065327898. The cubic root of 668083255 is about 874.1987789418.
The spelling of 668083255 in words is "six hundred sixty-eight million, eighty-three thousand, two hundred fifty-five".
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