Search a number
-
+
765993941 is a prime number
BaseRepresentation
bin101101101010000…
…010001111010101
31222101100112010222
4231222002033111
53032043301231
6204001524125
724660561326
oct5552021725
91871315128
10765993941
11363424649
12194643645
13c290766b
1473a3644d
15473ab27b
hex2da823d5

765993941 has 2 divisors, whose sum is σ = 765993942. Its totient is φ = 765993940.

The previous prime is 765993929. The next prime is 765993947. The reversal of 765993941 is 149399567.

It is a happy number.

765993941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 747803716 + 18190225 = 27346^2 + 4265^2 .

It is an emirp because it is prime and its reverse (149399567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 765993941 - 210 = 765992917 is a prime.

It is a super-3 number, since 3×7659939413 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (765993947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382996970 + 382996971.

It is an arithmetic number, because the mean of its divisors is an integer number (382996971).

Almost surely, 2765993941 is an apocalyptic number.

It is an amenable number.

765993941 is a deficient number, since it is larger than the sum of its proper divisors (1).

765993941 is an equidigital number, since it uses as much as digits as its factorization.

765993941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 53.

The square root of 765993941 is about 27676.5955456953. The cubic root of 765993941 is about 914.9733500753.

The spelling of 765993941 in words is "seven hundred sixty-five million, nine hundred ninety-three thousand, nine hundred forty-one".