Search a number
-
+
523208 = 2379343
BaseRepresentation
bin1111111101111001000
3222120201002
41333233020
5113220313
615114132
74306250
oct1775710
9876632
10523208
11328104
12212948
131541ba
14d8960
15a5058
hex7fbc8

523208 has 16 divisors (see below), whose sum is σ = 1121280. Its totient is φ = 224208.

The previous prime is 523207. The next prime is 523213. The reversal of 523208 is 802325.

It is a super-2 number, since 2×5232082 = 547493222528, which contains 22 as substring.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 523208.

It is not an unprimeable number, because it can be changed into a prime (523207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616 + ... + 4727.

It is an arithmetic number, because the mean of its divisors is an integer number (70080).

2523208 is an apocalyptic number.

It is an amenable number.

523208 is an abundant number, since it is smaller than the sum of its proper divisors (598072).

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

523208 is a wasteful number, since it uses less digits than its factorization.

523208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9356 (or 9352 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 523208 is about 723.3311827925. The cubic root of 523208 is about 80.5795415075.

The spelling of 523208 in words is "five hundred twenty-three thousand, two hundred eight".

Divisors: 1 2 4 7 8 14 28 56 9343 18686 37372 65401 74744 130802 261604 523208