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531227 = 1673181
BaseRepresentation
bin10000001101100011011
3222222201002
42001230123
5113444402
615215215
74341524
oct2015433
9888632
10531227
11333134
1221750b
13157a48
14db84b
15a7602
hex81b1b

531227 has 4 divisors (see below), whose sum is σ = 534576. Its totient is φ = 527880.

The previous prime is 531203. The next prime is 531229. The reversal of 531227 is 722135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722135 = 5144427.

It is a cyclic number.

It is not a de Polignac number, because 531227 - 26 = 531163 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 531199 and 531208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (133644).

2531227 is an apocalyptic number.

531227 is a deficient number, since it is larger than the sum of its proper divisors (3349).

531227 is a wasteful number, since it uses less digits than its factorization.

531227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3348.

The product of its digits is 420, while the sum is 20.

The square root of 531227 is about 728.8532088151. The cubic root of 531227 is about 80.9891262139.

The spelling of 531227 in words is "five hundred thirty-one thousand, two hundred twenty-seven".

Divisors: 1 167 3181 531227