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531200313 = 3278431751
BaseRepresentation
bin11111101010010…
…111100100111001
31101000112202211200
4133222113210321
52041441402223
6124413244413
716110061650
oct3752274471
91330482750
10531200313
11252937726
12129a93709
138608a517
1450798197
153197ca43
hex1fa97939

531200313 has 12 divisors (see below), whose sum is σ = 876902208. Its totient is φ = 303543000.

The previous prime is 531200311. The next prime is 531200381. The reversal of 531200313 is 313002135.

It is not a de Polignac number, because 531200313 - 21 = 531200311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531200311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4215813 + ... + 4215938.

It is an arithmetic number, because the mean of its divisors is an integer number (73075184).

Almost surely, 2531200313 is an apocalyptic number.

It is an amenable number.

531200313 is a deficient number, since it is larger than the sum of its proper divisors (345701895).

531200313 is a wasteful number, since it uses less digits than its factorization.

531200313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8431764 (or 8431761 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 531200313 is about 23047.7832556626. The cubic root of 531200313 is about 809.8776998707.

Adding to 531200313 its reverse (313002135), we get a palindrome (844202448).

The spelling of 531200313 in words is "five hundred thirty-one million, two hundred thousand, three hundred thirteen".

Divisors: 1 3 7 9 21 63 8431751 25295253 59022257 75885759 177066771 531200313