Search a number
-
+
379597861 is a prime number
BaseRepresentation
bin10110101000000…
…011010000100101
3222110021120101001
4112220003100211
51234134112421
6101400033301
712256346206
oct2650032045
9873246331
10379597861
11185300545
12a7162831
136084a126
14385b35ad
15234d3691
hex16a03425

379597861 has 2 divisors, whose sum is σ = 379597862. Its totient is φ = 379597860.

The previous prime is 379597831. The next prime is 379597919. The reversal of 379597861 is 168795973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379080900 + 516961 = 19470^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 379597861 - 215 = 379565093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379597831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189798930 + 189798931.

It is an arithmetic number, because the mean of its divisors is an integer number (189798931).

Almost surely, 2379597861 is an apocalyptic number.

It is an amenable number.

379597861 is a deficient number, since it is larger than the sum of its proper divisors (1).

379597861 is an equidigital number, since it uses as much as digits as its factorization.

379597861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 55.

The square root of 379597861 is about 19483.2713115637. The cubic root of 379597861 is about 724.0600492759.

The spelling of 379597861 in words is "three hundred seventy-nine million, five hundred ninety-seven thousand, eight hundred sixty-one".