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266000 = 2453719
BaseRepresentation
bin1000000111100010000
3111111212212
41000330100
532003000
65411252
72155340
oct1007420
9444785
10266000
11171939
12109b28
13940c7
146cd20
1553c35
hex40f10

266000 has 80 divisors (see below), whose sum is σ = 773760. Its totient is φ = 86400.

The previous prime is 265987. The next prime is 266003. The reversal of 266000 is 662.

266000 is nontrivially palindromic in base 15.

It is a tau number, because it is divible by the number of its divisors (80).

Together with 507759 it forms a betrothed pair.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 266000.

It is not an unprimeable number, because it can be changed into a prime (266003) by changing a digit.

266000 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13991 + ... + 14009.

It is an arithmetic number, because the mean of its divisors is an integer number (9672).

2266000 is an apocalyptic number.

266000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386880).

266000 is an abundant number, since it is smaller than the sum of its proper divisors (507760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266000 is a wasteful number, since it uses less digits than its factorization.

266000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 266000 is about 515.7518783291. The cubic root of 266000 is about 64.3122759138.

Adding to 266000 its reverse (662), we get a palindrome (266662).

The spelling of 266000 in words is "two hundred sixty-six thousand".

Divisors: 1 2 4 5 7 8 10 14 16 19 20 25 28 35 38 40 50 56 70 76 80 95 100 112 125 133 140 152 175 190 200 250 266 280 304 350 380 400 475 500 532 560 665 700 760 875 950 1000 1064 1330 1400 1520 1750 1900 2000 2128 2375 2660 2800 3325 3500 3800 4750 5320 6650 7000 7600 9500 10640 13300 14000 16625 19000 26600 33250 38000 53200 66500 133000 266000