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262 = 2131
BaseRepresentation
bin100000110
3100201
410012
52022
61114
7523
oct406
9321
10262
11219
1219a
13172
1414a
15127
hex106

262 has 4 divisors (see below), whose sum is σ = 396. Its totient is φ = 130.

The previous prime is 257. The next prime is 263.

Adding to 262 its sum of digits (10), we get a palindrome (272).

Subtracting from 262 its sum of digits (10), we obtain a palindrome (252).

It can be divided in two parts, 26 and 2, that added together give a triangular number (28 = T7).

It is a happy number.

262 is nontrivially palindromic in base 10.

262 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 27 + 6 + 27 .

262 is an undulating number in base 10.

It is a plaindrome in base 6, base 12, base 14 and base 15.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263) by changing a digit.

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

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64 + ... + 67.

It is an arithmetic number, because the mean of its divisors is an integer number (99).

262 is a deficient number, since it is larger than the sum of its proper divisors (134).

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

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

The sum of its prime factors is 133.

The product of its digits is 24, while the sum is 10.

The square root of 262 is about 16.1864140562. The cubic root of 262 is about 6.3988279104.

The spelling of 262 in words is "two hundred sixty-two", and thus it is an aban number.

Divisors: 1 2 131 262