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2130103212 = 223434128107
BaseRepresentation
bin111111011110110…
…1100101110101100
312111110011110021120
41332331230232230
513330301300322
6551211300540
7103533402306
oct17675545654
95443143246
102130103212
119a342a086
124b544a750
1327c3cab03
14162c84976
15c7011a5c
hex7ef6cbac

2130103212 has 24 divisors (see below), whose sum is σ = 5085829056. Its totient is φ = 693521808.

The previous prime is 2130103211. The next prime is 2130103237. The reversal of 2130103212 is 2123010312.

It is a junction number, because it is equal to n+sod(n) for n = 2130103191 and 2130103200.

It is not an unprimeable number, because it can be changed into a prime (2130103211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2063538 + ... + 2064569.

It is an arithmetic number, because the mean of its divisors is an integer number (211909544).

Almost surely, 22130103212 is an apocalyptic number.

It is an amenable number.

2130103212 is an abundant number, since it is smaller than the sum of its proper divisors (2955725844).

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

2130103212 is a wasteful number, since it uses less digits than its factorization.

2130103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128157 (or 4128155 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2130103212 is about 46153.0411999036. The cubic root of 2130103212 is about 1286.6691329772.

Adding to 2130103212 its reverse (2123010312), we get a palindrome (4253113524).

The spelling of 2130103212 in words is "two billion, one hundred thirty million, one hundred three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 4128107 8256214 12384321 16512428 24768642 49537284 177508601 355017202 532525803 710034404 1065051606 2130103212