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531878468 = 221112088147
BaseRepresentation
bin11111101100111…
…101001001000100
31101001211020002112
4133230331021010
52042130102333
6124440000152
716115615042
oct3754751104
91331736075
10531878468
11253260190
1212a160058
13862670b4
14508d3392
1531a63948
hex1fb3d244

531878468 has 12 divisors (see below), whose sum is σ = 1015404432. Its totient is φ = 241762920.

The previous prime is 531878453. The next prime is 531878491. The reversal of 531878468 is 864878135.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6044030 + ... + 6044117.

It is an arithmetic number, because the mean of its divisors is an integer number (84617036).

Almost surely, 2531878468 is an apocalyptic number.

It is an amenable number.

531878468 is a deficient number, since it is larger than the sum of its proper divisors (483525964).

531878468 is a wasteful number, since it uses less digits than its factorization.

531878468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12088162 (or 12088160 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 531878468 is about 23062.4904986430. The cubic root of 531878468 is about 810.2221958124. Note that the first 3 decimals are identical.

The spelling of 531878468 in words is "five hundred thirty-one million, eight hundred seventy-eight thousand, four hundred sixty-eight".

Divisors: 1 2 4 11 22 44 12088147 24176294 48352588 132969617 265939234 531878468