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531325039 = 71732711619
BaseRepresentation
bin11111101010110…
…110000001101111
31101000210002221011
4133222312001233
52042004400124
6124420050051
716111121410
oct3752660157
91330702834
10531325039
11252a12403
12129b33927
138610221b
14507cb807
15319a4994
hex1fab606f

531325039 has 16 divisors (see below), whose sum is σ = 613370880. Its totient is φ = 450839520.

The previous prime is 531325033. The next prime is 531325043. The reversal of 531325039 is 930523135.

It is a cyclic number.

It is not a de Polignac number, because 531325039 - 29 = 531324527 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 531325039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531325033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327372 + ... + 328990.

It is an arithmetic number, because the mean of its divisors is an integer number (38335680).

Almost surely, 2531325039 is an apocalyptic number.

531325039 is a deficient number, since it is larger than the sum of its proper divisors (82045841).

531325039 is a wasteful number, since it uses less digits than its factorization.

531325039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070.

The product of its (nonzero) digits is 12150, while the sum is 31.

The square root of 531325039 is about 23050.4889102162. The cubic root of 531325039 is about 809.9410814229.

The spelling of 531325039 in words is "five hundred thirty-one million, three hundred twenty-five thousand, thirty-nine".

Divisors: 1 7 173 271 1211 1619 1897 11333 46883 280087 328181 438749 1960609 3071243 75903577 531325039