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320313031230 = 23515768007013
BaseRepresentation
bin1001010100101000010…
…01001111101000111110
31010121210011110221010010
410222110021033220332
520222000113444410
6403052203524050
732066440561623
oct4522411175076
91117704427103
10320313031230
111139313a0315
12520b4229626
132428931780a
1411708c3034a
1584eab5ec20
hex4a9424fa3e

320313031230 has 32 divisors (see below), whose sum is σ = 773647791264. Its totient is φ = 84872750976.

The previous prime is 320313031211. The next prime is 320313031253. The reversal of 320313031230 is 32130313023.

It is a junction number, because it is equal to n+sod(n) for n = 320313031197 and 320313031206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33998797 + ... + 34008216.

It is an arithmetic number, because the mean of its divisors is an integer number (24176493477).

Almost surely, 2320313031230 is an apocalyptic number.

320313031230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320313031230 is an abundant number, since it is smaller than the sum of its proper divisors (453334760034).

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

320313031230 is a wasteful number, since it uses less digits than its factorization.

320313031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68007180.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 320313031230 its reverse (32130313023), we get a palindrome (352443344253).

The spelling of 320313031230 in words is "three hundred twenty billion, three hundred thirteen million, thirty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 157 314 471 785 942 1570 2355 4710 68007013 136014026 204021039 340035065 408042078 680070130 1020105195 2040210390 10677101041 21354202082 32031303123 53385505205 64062606246 106771010410 160156515615 320313031230