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531075992 = 23195959219
BaseRepresentation
bin11111101001111…
…001001110011000
31101000022110022012
4133221321032120
52041423412432
6124410445052
716106033336
oct3751711630
91330273265
10531075992
11252862287
12129a33788
1386045a65
1450764b56
1531955cb2
hex1fa79398

531075992 has 32 divisors (see below), whose sum is σ = 1065960000. Its totient is φ = 247294368.

The previous prime is 531075991. The next prime is 531076009. The reversal of 531075992 is 299570135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531075991) 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 7 ways as a sum of consecutive naturals, for example, 20642 + ... + 38577.

It is an arithmetic number, because the mean of its divisors is an integer number (33311250).

Almost surely, 2531075992 is an apocalyptic number.

It is an amenable number.

531075992 is an abundant number, since it is smaller than the sum of its proper divisors (534884008).

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

531075992 is a wasteful number, since it uses less digits than its factorization.

531075992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59303 (or 59299 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 531075992 is about 23045.0860705704. The cubic root of 531075992 is about 809.8145142521.

The spelling of 531075992 in words is "five hundred thirty-one million, seventy-five thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 19 38 59 76 118 152 236 472 1121 2242 4484 8968 59219 118438 236876 473752 1125161 2250322 3493921 4500644 6987842 9001288 13975684 27951368 66384499 132768998 265537996 531075992