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2220103212 = 223593135739
BaseRepresentation
bin1000010001010100…
…0001011000101100
312201201111221001220
42010111001120230
514021321300322
61004144303340
7106005365055
oct20425013054
95651457056
102220103212
11a3a210448
1251b611b50
13294c4ca52
14170bd172c
15ced8d55c
hex8454162c

2220103212 has 24 divisors (see below), whose sum is σ = 5268043200. Its totient is φ = 727491216.

The previous prime is 2220103211. The next prime is 2220103231. The reversal of 2220103212 is 2123010222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2220103191 and 2220103200.

It is not an unprimeable number, because it can be changed into a prime (2220103211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567162 + ... + 1568577.

It is an arithmetic number, because the mean of its divisors is an integer number (219501800).

Almost surely, 22220103212 is an apocalyptic number.

It is an amenable number.

2220103212 is an abundant number, since it is smaller than the sum of its proper divisors (3047939988).

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

2220103212 is a wasteful number, since it uses less digits than its factorization.

2220103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135805 (or 3135803 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2220103212 is about 47117.9712211806. The cubic root of 2220103212 is about 1304.5409662531.

Adding to 2220103212 its reverse (2123010222), we get a palindrome (4343113434).

The spelling of 2220103212 in words is "two billion, two hundred twenty million, one hundred three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 59 118 177 236 354 708 3135739 6271478 9407217 12542956 18814434 37628868 185008601 370017202 555025803 740034404 1110051606 2220103212