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3049199081 is a prime number
BaseRepresentation
bin1011010110111111…
…0001010111101001
321212111121100210022
42311233301113221
522221043332311
61222322530225
7135363523145
oct26557612751
97774540708
103049199081
111325214445
12711206975
1339794c216
1420cd72225
1512ca615db
hexb5bf15e9

3049199081 has 2 divisors, whose sum is σ = 3049199082. Its totient is φ = 3049199080.

The previous prime is 3049199071. The next prime is 3049199107. The reversal of 3049199081 is 1809919403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2939808400 + 109390681 = 54220^2 + 10459^2 .

It is an emirp because it is prime and its reverse (1809919403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3049199081 - 226 = 2982090217 is a prime.

It is a super-2 number, since 2×30491990812 = 18595230071142489122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3049199051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1524599540 + 1524599541.

It is an arithmetic number, because the mean of its divisors is an integer number (1524599541).

Almost surely, 23049199081 is an apocalyptic number.

It is an amenable number.

3049199081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3049199081 is an equidigital number, since it uses as much as digits as its factorization.

3049199081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 3049199081 is about 55219.5534299219. The cubic root of 3049199081 is about 1450.0910099039.

The spelling of 3049199081 in words is "three billion, forty-nine million, one hundred ninety-nine thousand, eighty-one".