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2202401081 is a prime number
BaseRepresentation
bin1000001101000101…
…1111100100111001
312200111012120022102
42003101133210321
514002303313311
61002313033145
7105402046256
oct20321374471
95614176272
102202401081
11a3021a591
125156b57b5
1329139250a
1416c70442d
15cd54343b
hex8345f939

2202401081 has 2 divisors, whose sum is σ = 2202401082. Its totient is φ = 2202401080.

The previous prime is 2202401077. The next prime is 2202401083. The reversal of 2202401081 is 1801042022.

It is a happy number.

2202401081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2145171856 + 57229225 = 46316^2 + 7565^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202401081 - 22 = 2202401077 is a prime.

It is a super-2 number, since 2×22024010812 = 9701141043179937122, which contains 22 as substring.

Together with 2202401083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2202401083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101200540 + 1101200541.

It is an arithmetic number, because the mean of its divisors is an integer number (1101200541).

Almost surely, 22202401081 is an apocalyptic number.

It is an amenable number.

2202401081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202401081 is an equidigital number, since it uses as much as digits as its factorization.

2202401081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 2202401081 is about 46929.7462277392. The cubic root of 2202401081 is about 1301.0644301871.

The spelling of 2202401081 in words is "two billion, two hundred two million, four hundred one thousand, eighty-one".