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2220021983 = 61107340129
BaseRepresentation
bin1000010001010010…
…1101100011011111
312201201100210122102
42010110231203133
514021311200413
61004142435315
7106004606204
oct20424554337
95651323572
102220021983
11a3a165413
1251b592b3b
13294c21a9a
14170badcab
15ced74458
hex8452d8df

2220021983 has 8 divisors (see below), whose sum is σ = 2277510480. Its totient is φ = 2163214080.

The previous prime is 2220021929. The next prime is 2220022001. The reversal of 2220021983 is 3891200222.

2220021983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2220021983 - 230 = 1146280159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220021913) 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, 163538 + ... + 176591.

It is an arithmetic number, because the mean of its divisors is an integer number (284688810).

Almost surely, 22220021983 is an apocalyptic number.

2220021983 is a deficient number, since it is larger than the sum of its proper divisors (57488497).

2220021983 is a wasteful number, since it uses less digits than its factorization.

2220021983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340297.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2220021983 is about 47117.1092385770. The cubic root of 2220021983 is about 1304.5250559041.

The spelling of 2220021983 in words is "two billion, two hundred twenty million, twenty-one thousand, nine hundred eighty-three".

Divisors: 1 61 107 6527 340129 20747869 36393803 2220021983