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266666 = 2151883
BaseRepresentation
bin1000001000110101010
3111112210112
41001012222
532013131
65414322
72160311
oct1010652
9445715
10266666
11172394
1210a3a2
13944ba
146d278
155402b
hex411aa

266666 has 8 divisors (see below), whose sum is σ = 403104. Its totient is φ = 132300.

The previous prime is 266663. The next prime is 266671. The reversal of 266666 is 666662.

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

It is a super-2 number, since 2×2666662 = 142221511112, which contains 22 as substring.

266666 is a modest number, since divided by 666 gives 266 as remainder.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (266663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140 + ... + 743.

It is an arithmetic number, because the mean of its divisors is an integer number (50388).

2266666 is an apocalyptic number.

266666 is a deficient number, since it is larger than the sum of its proper divisors (136438).

266666 is a wasteful number, since it uses less digits than its factorization.

266666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

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

The square root of 266666 is about 516.3971339967. The cubic root of 266666 is about 64.3659053354.

The spelling of 266666 in words is "two hundred sixty-six thousand, six hundred sixty-six".

Divisors: 1 2 151 302 883 1766 133333 266666