Search a number
-
+
2788950239 is a prime number
BaseRepresentation
bin1010011000111100…
…0000000011011111
321012100220100111022
42212033000003133
521202432401424
61140424514355
7126053454155
oct24617000337
97170810438
102788950239
111201320659
1265a01b9bb
13355a5b91a
141c65893d5
15114ca595e
hexa63c00df

2788950239 has 2 divisors, whose sum is σ = 2788950240. Its totient is φ = 2788950238.

The previous prime is 2788950217. The next prime is 2788950293. The reversal of 2788950239 is 9320598872.

Together with next prime (2788950293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2788950239 - 212 = 2788946143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2788950299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394475119 + 1394475120.

It is an arithmetic number, because the mean of its divisors is an integer number (1394475120).

Almost surely, 22788950239 is an apocalyptic number.

2788950239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788950239 is an equidigital number, since it uses as much as digits as its factorization.

2788950239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 2788950239 is about 52810.5125803566. The cubic root of 2788950239 is about 1407.6032314833.

The spelling of 2788950239 in words is "two billion, seven hundred eighty-eight million, nine hundred fifty thousand, two hundred thirty-nine".