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831306130 = 2583130613
BaseRepresentation
bin110001100011001…
…011100110010010
32010221020201121221
4301203023212102
53200303244010
6214253435254
726412662014
oct6143134622
92127221557
10831306130
11397283666
121b249bb2a
131032c4525
147c5981b4
154ceacdda
hex318cb992

831306130 has 8 divisors (see below), whose sum is σ = 1496351052. Its totient is φ = 332522448.

The previous prime is 831306101. The next prime is 831306149. The reversal of 831306130 is 31603138.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 715937049 + 115369081 = 26757^2 + 10741^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 831306095 and 831306104.

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, 41565297 + ... + 41565316.

Almost surely, 2831306130 is an apocalyptic number.

831306130 is a deficient number, since it is larger than the sum of its proper divisors (665044922).

831306130 is a wasteful number, since it uses less digits than its factorization.

831306130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83130620.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 831306130 is about 28832.3798878969. The cubic root of 831306130 is about 940.2723407356.

Adding to 831306130 its reverse (31603138), we get a palindrome (862909268).

The spelling of 831306130 in words is "eight hundred thirty-one million, three hundred six thousand, one hundred thirty".

Divisors: 1 2 5 10 83130613 166261226 415653065 831306130