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531741040 = 24559112657
BaseRepresentation
bin11111101100011…
…011100101110000
31101001120020120121
4133230123211300
52042111203130
6124433020024
716114503265
oct3754334560
91331506517
10531741040
11253176a06
1212a0b4614
138621968c
145089926c
1531a37d7a
hex1fb1b970

531741040 has 40 divisors (see below), whose sum is σ = 1257263280. Its totient is φ = 209089536.

The previous prime is 531741037. The next prime is 531741059. The reversal of 531741040 is 40147135.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 531740996 and 531741014.

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, 51609 + ... + 61048.

It is an arithmetic number, because the mean of its divisors is an integer number (31431582).

Almost surely, 2531741040 is an apocalyptic number.

It is an amenable number.

531741040 is an abundant number, since it is smaller than the sum of its proper divisors (725522240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531741040 is a wasteful number, since it uses less digits than its factorization.

531741040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112729 (or 112723 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 531741040 is about 23059.5108360954. The cubic root of 531741040 is about 810.1524074340.

Adding to 531741040 its reverse (40147135), we get a palindrome (571888175).

The spelling of 531741040 in words is "five hundred thirty-one million, seven hundred forty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 59 80 118 236 295 472 590 944 1180 2360 4720 112657 225314 450628 563285 901256 1126570 1802512 2253140 4506280 6646763 9012560 13293526 26587052 33233815 53174104 66467630 106348208 132935260 265870520 531741040