Search a number
-
+
230566169 is a prime number
BaseRepresentation
bin11011011111000…
…10100100011001
3121001211222022202
431233202210121
5433011104134
634513455545
75466531401
oct1557424431
9531758282
10230566169
1110916a859
12652715b5
13389c9bb2
142289b801
1515395d7e
hexdbe2919

230566169 has 2 divisors, whose sum is σ = 230566170. Its totient is φ = 230566168.

The previous prime is 230566163. The next prime is 230566199. The reversal of 230566169 is 961665032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122655625 + 107910544 = 11075^2 + 10388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230566169 is a prime.

It is a super-2 number, since 2×2305661692 = 106321516574673122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230566163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115283084 + 115283085.

It is an arithmetic number, because the mean of its divisors is an integer number (115283085).

Almost surely, 2230566169 is an apocalyptic number.

It is an amenable number.

230566169 is a deficient number, since it is larger than the sum of its proper divisors (1).

230566169 is an equidigital number, since it uses as much as digits as its factorization.

230566169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 230566169 is about 15184.4054542810. The cubic root of 230566169 is about 613.1948911367.

The spelling of 230566169 in words is "two hundred thirty million, five hundred sixty-six thousand, one hundred sixty-nine".