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531425211 = 31311352227
BaseRepresentation
bin11111101011001…
…110011110111011
31101000222012100020
4133223032132323
52042021101321
6124422141523
716112016432
oct3753163673
91330865306
10531425211
11252a80699
12129b818a3
13861389b5
1450816119
15319c44c6
hex1face7bb

531425211 has 8 divisors (see below), whose sum is σ = 713976384. Its totient is φ = 351578760.

The previous prime is 531425197. The next prime is 531425239. The reversal of 531425211 is 112524135.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-531425211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531425291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675721 + ... + 676506.

It is an arithmetic number, because the mean of its divisors is an integer number (89247048).

Almost surely, 2531425211 is an apocalyptic number.

531425211 is a deficient number, since it is larger than the sum of its proper divisors (182551173).

531425211 is a wasteful number, since it uses less digits than its factorization.

531425211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352361.

The product of its digits is 1200, while the sum is 24.

The square root of 531425211 is about 23052.6616901390. The cubic root of 531425211 is about 809.9919782775.

Adding to 531425211 its reverse (112524135), we get a palindrome (643949346).

The spelling of 531425211 in words is "five hundred thirty-one million, four hundred twenty-five thousand, two hundred eleven".

Divisors: 1 3 131 393 1352227 4056681 177141737 531425211