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264213 = 3231947
BaseRepresentation
bin1000000100000010101
3111102102200
41000200111
531423323
65355113
72150205
oct1004025
9442380
10264213
11170564
12108a99
1393351
146c405
1553443
hex40815

264213 has 12 divisors (see below), whose sum is σ = 394368. Its totient is φ = 170280.

The previous prime is 264211. The next prime is 264221. The reversal of 264213 is 312462.

It is a happy number.

It is not a de Polignac number, because 264213 - 21 = 264211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195 + ... + 752.

It is an arithmetic number, because the mean of its divisors is an integer number (32864).

2264213 is an apocalyptic number.

It is an amenable number.

264213 is a deficient number, since it is larger than the sum of its proper divisors (130155).

264213 is a wasteful number, since it uses less digits than its factorization.

264213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 981 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 264213 is about 514.0165366990. The cubic root of 264213 is about 64.1679346089.

Adding to 264213 its reverse (312462), we get a palindrome (576675).

The spelling of 264213 in words is "two hundred sixty-four thousand, two hundred thirteen".

Divisors: 1 3 9 31 93 279 947 2841 8523 29357 88071 264213