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531340833 = 31921144179
BaseRepresentation
bin11111101010111…
…001111000100001
31101000210220121010
4133222321320201
52042010401313
6124420251133
716111215432
oct3752717041
91330726533
10531340833
11252a23261
12129b40aa9
138610947a
14507d3489
15319a94c3
hex1fab9e21

531340833 has 16 divisors (see below), whose sum is σ = 749292800. Its totient is φ = 333985680.

The previous prime is 531340829. The next prime is 531340841. The reversal of 531340833 is 338043135.

It is not a de Polignac number, because 531340833 - 22 = 531340829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531340833.

It is not an unprimeable number, because it can be changed into a prime (531340133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10063 + ... + 34116.

It is an arithmetic number, because the mean of its divisors is an integer number (46830800).

Almost surely, 2531340833 is an apocalyptic number.

It is an amenable number.

531340833 is a deficient number, since it is larger than the sum of its proper divisors (217951967).

531340833 is a wasteful number, since it uses less digits than its factorization.

531340833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44412.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 531340833 is about 23050.8315034404. The cubic root of 531340833 is about 809.9491066942.

Adding to 531340833 its reverse (338043135), we get a palindrome (869383968).

The spelling of 531340833 in words is "five hundred thirty-one million, three hundred forty thousand, eight hundred thirty-three".

Divisors: 1 3 19 57 211 633 4009 12027 44179 132537 839401 2518203 9321769 27965307 177113611 531340833