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2220212140 = 225839132313
BaseRepresentation
bin1000010001010101…
…1011111110101100
312201201201110111021
42010111123332230
514021333242030
61004150503524
7106006330456
oct20425337654
95651643437
102220212140
11a3a285273
1251b664ba4
13294c8a4c3
14170c1d2d6
15cedb097a
hex8455bfac

2220212140 has 24 divisors (see below), whose sum is σ = 4668037920. Its totient is φ = 887019648.

The previous prime is 2220212119. The next prime is 2220212153. The reversal of 2220212140 is 412120222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49377 + ... + 82936.

It is an arithmetic number, because the mean of its divisors is an integer number (194501580).

Almost surely, 22220212140 is an apocalyptic number.

2220212140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220212140 is an abundant number, since it is smaller than the sum of its proper divisors (2447825780).

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

2220212140 is a wasteful number, since it uses less digits than its factorization.

2220212140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133161 (or 133159 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2220212140 is about 47119.1271141561. The cubic root of 2220212140 is about 1304.5623014044.

Adding to 2220212140 its reverse (412120222), we get a palindrome (2632332362).

The spelling of 2220212140 in words is "two billion, two hundred twenty million, two hundred twelve thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 839 1678 3356 4195 8390 16780 132313 264626 529252 661565 1323130 2646260 111010607 222021214 444042428 555053035 1110106070 2220212140