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264280 = 2356607
BaseRepresentation
bin1000000100001011000
3111102112011
41000201120
531424110
65355304
72150332
oct1004130
9442464
10264280
11170615
12108b34
13933a3
146c452
155348a
hex40858

264280 has 16 divisors (see below), whose sum is σ = 594720. Its totient is φ = 105696.

The previous prime is 264269. The next prime is 264283. The reversal of 264280 is 82462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264283) 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 3 ways as a sum of consecutive naturals, for example, 3264 + ... + 3343.

It is an arithmetic number, because the mean of its divisors is an integer number (37170).

2264280 is an apocalyptic number.

264280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264280 is an abundant number, since it is smaller than the sum of its proper divisors (330440).

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

264280 is a wasteful number, since it uses less digits than its factorization.

264280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618 (or 6614 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 264280 is about 514.0817055683. The cubic root of 264280 is about 64.1733581223.

It can be divided in two parts, 264 and 280, that multiplied together give a triangular number (73920 = T384).

The spelling of 264280 in words is "two hundred sixty-four thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 6607 13214 26428 33035 52856 66070 132140 264280