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230602181 is a prime number
BaseRepresentation
bin11011011111010…
…11010111000101
3121001220210201112
431233223113011
5433013232211
634514334405
75500041365
oct1557532705
9531823645
10230602181
11109194917
126528a405
1338a103c4
14228aa9a5
15153a188b
hexdbeb5c5

230602181 has 2 divisors, whose sum is σ = 230602182. Its totient is φ = 230602180.

The previous prime is 230602159. The next prime is 230602187. The reversal of 230602181 is 181206032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230584225 + 17956 = 15185^2 + 134^2 .

It is a cyclic number.

It is not a de Polignac number, because 230602181 - 222 = 226407877 is a prime.

It is a super-4 number, since 4×2306021814 (a number of 35 digits) contains 4444 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 (230602187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115301090 + 115301091.

It is an arithmetic number, because the mean of its divisors is an integer number (115301091).

Almost surely, 2230602181 is an apocalyptic number.

It is an amenable number.

230602181 is a deficient number, since it is larger than the sum of its proper divisors (1).

230602181 is an equidigital number, since it uses as much as digits as its factorization.

230602181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 230602181 is about 15185.5912298468. The cubic root of 230602181 is about 613.2268143296.

The spelling of 230602181 in words is "two hundred thirty million, six hundred two thousand, one hundred eighty-one".