Search a number
-
+
38771034769 is a prime number
BaseRepresentation
bin100100000110111011…
…110000101010010001
310201002000112122010201
4210012323300222101
51113400341103034
625451113455201
72541532233535
oct440673605221
9121060478121
1038771034769
11154962692a5
127620411501
13386b5890bc
141c3b29bbc5
15101db79014
hex906ef0a91

38771034769 has 2 divisors, whose sum is σ = 38771034770. Its totient is φ = 38771034768.

The previous prime is 38771034761. The next prime is 38771034821. The reversal of 38771034769 is 96743017783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32937894144 + 5833140625 = 181488^2 + 76375^2 .

It is an emirp because it is prime and its reverse (96743017783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38771034769 - 23 = 38771034761 is a prime.

It is a super-2 number, since 2×387710347692 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38771034761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19385517384 + 19385517385.

It is an arithmetic number, because the mean of its divisors is an integer number (19385517385).

Almost surely, 238771034769 is an apocalyptic number.

It is an amenable number.

38771034769 is a deficient number, since it is larger than the sum of its proper divisors (1).

38771034769 is an equidigital number, since it uses as much as digits as its factorization.

38771034769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 38771034769 in words is "thirty-eight billion, seven hundred seventy-one million, thirty-four thousand, seven hundred sixty-nine".