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521082 = 23228949
BaseRepresentation
bin1111111001101111010
3222110210100
41333031322
5113133312
615100230
74300122
oct1771572
9873710
10521082
11326551
12211676
13153243
14d7c82
15a45dc
hex7f37a

521082 has 12 divisors (see below), whose sum is σ = 1129050. Its totient is φ = 173688.

The previous prime is 521063. The next prime is 521107. The reversal of 521082 is 280125.

521082 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 281961 + 239121 = 531^2 + 489^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 28949 = 521082 / (5 + 2 + 1 + 0 + 8 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14457 + ... + 14492.

2521082 is an apocalyptic number.

521082 is an abundant number, since it is smaller than the sum of its proper divisors (607968).

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

521082 is a wasteful number, since it uses less digits than its factorization.

521082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28957 (or 28954 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 521082 is about 721.8600972488. The cubic root of 521082 is about 80.4702512146.

The spelling of 521082 in words is "five hundred twenty-one thousand, eighty-two".

Divisors: 1 2 3 6 9 18 28949 57898 86847 173694 260541 521082