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531395 = 5106279
BaseRepresentation
bin10000001101111000011
3222222221022
42001233003
5114001040
615220055
74342154
oct2015703
9888838
10531395
11333277
1221762b
13157b47
14db92b
15a76b5
hex81bc3

531395 has 4 divisors (see below), whose sum is σ = 637680. Its totient is φ = 425112.

The previous prime is 531383. The next prime is 531457. The reversal of 531395 is 593135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531395 - 26 = 531331 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 531395.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53135 + ... + 53144.

It is an arithmetic number, because the mean of its divisors is an integer number (159420).

531395 is a Friedman number, since it can be written as 9^(3+3)-51+5, using all its digits and the basic arithmetic operations.

2531395 is an apocalyptic number.

531395 is a deficient number, since it is larger than the sum of its proper divisors (106285).

531395 is a wasteful number, since it uses less digits than its factorization.

531395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106284.

The product of its digits is 2025, while the sum is 26.

The square root of 531395 is about 728.9684492487. The cubic root of 531395 is about 80.9976628904.

The spelling of 531395 in words is "five hundred thirty-one thousand, three hundred ninety-five".

Divisors: 1 5 106279 531395