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2748757789 is a prime number
BaseRepresentation
bin1010001111010110…
…1011011100011101
321002120021100211001
42203311223130131
521112140222124
61132431230301
7125055025051
oct24365533435
97076240731
102748757789
111190669458
12648678391
1334a6285cb
141c10c5c61
151114b6b44
hexa3d6b71d

2748757789 has 2 divisors, whose sum is σ = 2748757790. Its totient is φ = 2748757788.

The previous prime is 2748757771. The next prime is 2748757801. The reversal of 2748757789 is 9877578472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2577592900 + 171164889 = 50770^2 + 13083^2 .

It is a cyclic number.

It is not a de Polignac number, because 2748757789 - 229 = 2211886877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2748757789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2748757769) 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, 1374378894 + 1374378895.

It is an arithmetic number, because the mean of its divisors is an integer number (1374378895).

Almost surely, 22748757789 is an apocalyptic number.

It is an amenable number.

2748757789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748757789 is an equidigital number, since it uses as much as digits as its factorization.

2748757789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55319040, while the sum is 64.

The square root of 2748757789 is about 52428.5970535165. The cubic root of 2748757789 is about 1400.8086805818.

The spelling of 2748757789 in words is "two billion, seven hundred forty-eight million, seven hundred fifty-seven thousand, seven hundred eighty-nine".