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830503130 = 25409203057
BaseRepresentation
bin110001100000000…
…111100011011010
32010212201221010012
4301200013203122
53200102100010
6214224321522
726403105632
oct6140074332
92125657105
10830503130
11396885326
121b21732a2
131030a2b92
147c4296c2
154cda0005
hex318078da

830503130 has 16 divisors (see below), whose sum is σ = 1498568040. Its totient is φ = 331387392.

The previous prime is 830503109. The next prime is 830503169. The reversal of 830503130 is 31305038.

It can be written as a sum of positive squares in 4 ways, for example, as 734247409 + 96255721 = 27097^2 + 9811^2 .

It is a junction number, because it is equal to n+sod(n) for n = 830503096 and 830503105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97439 + ... + 105618.

Almost surely, 2830503130 is an apocalyptic number.

830503130 is a deficient number, since it is larger than the sum of its proper divisors (668064910).

830503130 is a wasteful number, since it uses less digits than its factorization.

830503130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203473.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 830503130 is about 28818.4512075163. The cubic root of 830503130 is about 939.9694912386.

Adding to 830503130 its reverse (31305038), we get a palindrome (861808168).

The spelling of 830503130 in words is "eight hundred thirty million, five hundred three thousand, one hundred thirty".

Divisors: 1 2 5 10 409 818 2045 4090 203057 406114 1015285 2030570 83050313 166100626 415251565 830503130