Search a number
-
+
230257793 is a prime number
BaseRepresentation
bin11011011100101…
…11010010000001
3121001021022022102
431232113102001
5432421222133
634503120145
75464105343
oct1556272201
9531238272
10230257793
11108a7a0a7
1265143055
133891c71c
142281b293
15153347e8
hexdb97481

230257793 has 2 divisors, whose sum is σ = 230257794. Its totient is φ = 230257792.

The previous prime is 230257723. The next prime is 230257817. The reversal of 230257793 is 397752032.

It is a happy number.

230257793 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., 149401729 + 80856064 = 12223^2 + 8992^2 .

It is a cyclic number.

It is not a de Polignac number, because 230257793 - 212 = 230253697 is a prime.

It is not a weakly prime, because it can be changed into another prime (230257723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115128896 + 115128897.

It is an arithmetic number, because the mean of its divisors is an integer number (115128897).

Almost surely, 2230257793 is an apocalyptic number.

It is an amenable number.

230257793 is a deficient number, since it is larger than the sum of its proper divisors (1).

230257793 is an equidigital number, since it uses as much as digits as its factorization.

230257793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 230257793 is about 15174.2476914014. The cubic root of 230257793 is about 612.9213919872.

The spelling of 230257793 in words is "two hundred thirty million, two hundred fifty-seven thousand, seven hundred ninety-three".