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531041382 = 232229128831
BaseRepresentation
bin11111101001110…
…000110001100110
31101000020200211100
4133221300301212
52041421311012
6124410020530
716105530414
oct3751606146
91330220740
10531041382
11252839283
12129a17746
1386033091
14507562b4
153194a8dc
hex1fa70c66

531041382 has 24 divisors (see below), whose sum is σ = 1155623040. Its totient is φ = 176239440.

The previous prime is 531041363. The next prime is 531041429. The reversal of 531041382 is 283140135.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60294 + ... + 68537.

It is an arithmetic number, because the mean of its divisors is an integer number (48150960).

Almost surely, 2531041382 is an apocalyptic number.

531041382 is an abundant number, since it is smaller than the sum of its proper divisors (624581658).

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

531041382 is a wasteful number, since it uses less digits than its factorization.

531041382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129068 (or 129065 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 531041382 is about 23044.3351390315. The cubic root of 531041382 is about 809.7969221123.

The spelling of 531041382 in words is "five hundred thirty-one million, forty-one thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 229 458 687 1374 2061 4122 128831 257662 386493 772986 1159479 2318958 29502299 59004598 88506897 177013794 265520691 531041382