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531952420 = 22527119811
BaseRepresentation
bin11111101101001…
…111001100100100
31101001221222112111
4133231033030210
52042134434140
6124441330404
716116343456
oct3755171444
91331858474
10531952420
112533007aa
1212a196a04
138629195c
14509122d6
1531a7a7ea
hex1fb4f324

531952420 has 24 divisors (see below), whose sum is σ = 1117626048. Its totient is φ = 212680800.

The previous prime is 531952397. The next prime is 531952427. The reversal of 531952420 is 24259135.

It is not an unprimeable number, because it can be changed into a prime (531952427) 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, 49315 + ... + 59125.

It is an arithmetic number, because the mean of its divisors is an integer number (46567752).

Almost surely, 2531952420 is an apocalyptic number.

It is an amenable number.

531952420 is an abundant number, since it is smaller than the sum of its proper divisors (585673628).

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

531952420 is a wasteful number, since it uses less digits than its factorization.

531952420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12531 (or 12529 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 531952420 is about 23064.0937389701. The cubic root of 531952420 is about 810.2597449762.

The spelling of 531952420 in words is "five hundred thirty-one million, nine hundred fifty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2711 5422 9811 10844 13555 19622 27110 39244 49055 54220 98110 196220 26597621 53195242 106390484 132988105 265976210 531952420