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8790000049 is a prime number
BaseRepresentation
bin10000010111110110…
…01100000110110001
3211200120221021020101
420023323030012301
5121000220000144
64012120112401
7430552524205
oct101373140661
924616837211
108790000049
1138007a9156
121853905701
13aa110447c
145d558cb05
15366a496d4
hex20becc1b1

8790000049 has 2 divisors, whose sum is σ = 8790000050. Its totient is φ = 8790000048.

The previous prime is 8789999987. The next prime is 8790000067. The reversal of 8790000049 is 9400000978.

It is a happy number.

8790000049 is digitally balanced in base 3, 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., 8787750049 + 2250000 = 93743^2 + 1500^2 .

It is a cyclic number.

It is not a de Polignac number, because 8790000049 - 223 = 8781611441 is a prime.

It is a super-2 number, since 2×87900000492 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8789999972 and 8790000017.

It is not a weakly prime, because it can be changed into another prime (8790000749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4395000024 + 4395000025.

It is an arithmetic number, because the mean of its divisors is an integer number (4395000025).

Almost surely, 28790000049 is an apocalyptic number.

It is an amenable number.

8790000049 is a deficient number, since it is larger than the sum of its proper divisors (1).

8790000049 is an equidigital number, since it uses as much as digits as its factorization.

8790000049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 8790000049 is about 93755.0001279932. Note that the first 3 decimals coincide. The cubic root of 8790000049 is about 2063.7779079463. Note that the first 3 decimals are identical.

The spelling of 8790000049 in words is "eight billion, seven hundred ninety million, forty-nine", and thus it is an aban number.