Search a number
-
+
523480 = 23523569
BaseRepresentation
bin1111111110011011000
3222121002011
41333303120
5113222410
615115304
74310116
oct1776330
9877064
10523480
11328331
12212b34
13154369
14d8ab6
15a518a
hex7fcd8

523480 has 32 divisors (see below), whose sum is σ = 1231200. Its totient is φ = 199936.

The previous prime is 523463. The next prime is 523487. The reversal of 523480 is 84325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523487) 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 7 ways as a sum of consecutive naturals, for example, 636 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (38475).

2523480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615600).

523480 is an abundant number, since it is smaller than the sum of its proper divisors (707720).

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

523480 is a wasteful number, since it uses less digits than its factorization.

523480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 523480 is about 723.5191773547. The cubic root of 523480 is about 80.5935027099.

The spelling of 523480 in words is "five hundred twenty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 569 920 1138 2276 2845 4552 5690 11380 13087 22760 26174 52348 65435 104696 130870 261740 523480