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531032442 = 2388505407
BaseRepresentation
bin11111101001101…
…110100101111010
31101000020020120020
4133221232211322
52041421014232
6124405511310
716105462353
oct3751564572
91330206506
10531032442
11252832596
12129a12536
138602bca5
1450752d2a
1531947e2c
hex1fa6e97a

531032442 has 8 divisors (see below), whose sum is σ = 1062064896. Its totient is φ = 177010812.

The previous prime is 531032429. The next prime is 531032479. The reversal of 531032442 is 244230135.

It is a sphenic number, since it is the product of 3 distinct primes.

531032442 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44252698 + ... + 44252709.

It is an arithmetic number, because the mean of its divisors is an integer number (132758112).

Almost surely, 2531032442 is an apocalyptic number.

531032442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

531032442 is a wasteful number, since it uses less digits than its factorization.

531032442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88505412.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 531032442 is about 23044.1411642960. The cubic root of 531032442 is about 809.7923778179.

Adding to 531032442 its reverse (244230135), we get a palindrome (775262577).

The spelling of 531032442 in words is "five hundred thirty-one million, thirty-two thousand, four hundred forty-two".

Divisors: 1 2 3 6 88505407 177010814 265516221 531032442