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531072590 = 25411295299
BaseRepresentation
bin11111101001111…
…000011001001110
31101000022021122012
4133221320121032
52041423310330
6124410421222
716106020406
oct3751703116
91330267565
10531072590
1125285a774
12129a31812
1386044349
1450763806
1531954c95
hex1fa7864e

531072590 has 16 divisors (see below), whose sum is σ = 979246800. Its totient is φ = 207247680.

The previous prime is 531072547. The next prime is 531072601. The reversal of 531072590 is 95270135.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 647240 + ... + 648059.

It is an arithmetic number, because the mean of its divisors is an integer number (61202925).

Almost surely, 2531072590 is an apocalyptic number.

531072590 is a deficient number, since it is larger than the sum of its proper divisors (448174210).

531072590 is a wasteful number, since it uses less digits than its factorization.

531072590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295347.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 531072590 is about 23045.0122586212. The cubic root of 531072590 is about 809.8127850614.

The spelling of 531072590 in words is "five hundred thirty-one million, seventy-two thousand, five hundred ninety".

Divisors: 1 2 5 10 41 82 205 410 1295299 2590598 6476495 12952990 53107259 106214518 265536295 531072590