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2122031893 is a prime number
BaseRepresentation
bin111111001111011…
…1010001100010101
312110212222101111211
41332132322030111
513321220010033
6550322301421
7103404654622
oct17636721425
95425871454
102122031893
11999916a73
124b27b7871
1327a833097
14161b83349
15c646a2cd
hex7e7ba315

2122031893 has 2 divisors, whose sum is σ = 2122031894. Its totient is φ = 2122031892.

The previous prime is 2122031887. The next prime is 2122031903. The reversal of 2122031893 is 3981302212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1250188164 + 871843729 = 35358^2 + 29527^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122031893 - 217 = 2121900821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122031803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061015946 + 1061015947.

It is an arithmetic number, because the mean of its divisors is an integer number (1061015947).

Almost surely, 22122031893 is an apocalyptic number.

It is an amenable number.

2122031893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122031893 is an equidigital number, since it uses as much as digits as its factorization.

2122031893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 2122031893 is about 46065.5173964214. The cubic root of 2122031893 is about 1285.0419408255.

The spelling of 2122031893 in words is "two billion, one hundred twenty-two million, thirty-one thousand, eight hundred ninety-three".