Search a number
-
+
3808993109 is a prime number
BaseRepresentation
bin1110001100001000…
…1001111101010101
3100211110021220020212
43203002021331111
530300100234414
61425543535205
7163250623115
oct34302117525
910743256225
103808993109
111685093999
128a375a505
1348919589c
14281c33045
151745e583e
hexe3089f55

3808993109 has 2 divisors, whose sum is σ = 3808993110. Its totient is φ = 3808993108.

The previous prime is 3808993093. The next prime is 3808993127. The reversal of 3808993109 is 9013998083.

3808993109 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3629701009 + 179292100 = 60247^2 + 13390^2 .

It is an emirp because it is prime and its reverse (9013998083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3808993109 - 24 = 3808993093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3808993189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1904496554 + 1904496555.

It is an arithmetic number, because the mean of its divisors is an integer number (1904496555).

Almost surely, 23808993109 is an apocalyptic number.

It is an amenable number.

3808993109 is a deficient number, since it is larger than the sum of its proper divisors (1).

3808993109 is an equidigital number, since it uses as much as digits as its factorization.

3808993109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 3808993109 is about 61717.0406694942. The cubic root of 3808993109 is about 1561.7208039730.

The spelling of 3808993109 in words is "three billion, eight hundred eight million, nine hundred ninety-three thousand, one hundred nine".