Search a number
-
+
230660251 is a prime number
BaseRepresentation
bin11011011111110…
…01100010011011
3121002000202101021
431233321202123
5433022112001
634515503311
75500402603
oct1557714233
9532022337
10230660251
11109224508
12652b7b37
1338a30973
14228c3c03
15153b3ba1
hexdbf989b

230660251 has 2 divisors, whose sum is σ = 230660252. Its totient is φ = 230660250.

The previous prime is 230660231. The next prime is 230660279. The reversal of 230660251 is 152066032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230660251 - 219 = 230135963 is a prime.

It is not a weakly prime, because it can be changed into another prime (230660231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115330125 + 115330126.

It is an arithmetic number, because the mean of its divisors is an integer number (115330126).

Almost surely, 2230660251 is an apocalyptic number.

230660251 is a deficient number, since it is larger than the sum of its proper divisors (1).

230660251 is an equidigital number, since it uses as much as digits as its factorization.

230660251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 230660251 is about 15187.5031193412. The cubic root of 230660251 is about 613.2782840545.

The spelling of 230660251 in words is "two hundred thirty million, six hundred sixty thousand, two hundred fifty-one".