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4789218139 is a prime number
BaseRepresentation
bin1000111010111010…
…11010101101011011
3110100202202111012121
410131131122231123
534302014440024
62111121322111
7226452453046
oct43535325533
913322674177
104789218139
112038430522
12b17a96337
135b429abb4
143360b3c5d
151d06bc8e4
hex11d75ab5b

4789218139 has 2 divisors, whose sum is σ = 4789218140. Its totient is φ = 4789218138.

The previous prime is 4789218107. The next prime is 4789218143. The reversal of 4789218139 is 9318129874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4789218139 - 25 = 4789218107 is a prime.

It is a super-2 number, since 2×47892181392 = 45873220765853246642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4789218739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2394609069 + 2394609070.

It is an arithmetic number, because the mean of its divisors is an integer number (2394609070).

Almost surely, 24789218139 is an apocalyptic number.

4789218139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4789218139 is an equidigital number, since it uses as much as digits as its factorization.

4789218139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The square root of 4789218139 is about 69204.1771788380. The cubic root of 4789218139 is about 1685.6013596111.

The spelling of 4789218139 in words is "four billion, seven hundred eighty-nine million, two hundred eighteen thousand, one hundred thirty-nine".