Search a number
-
+
230620277 is a prime number
BaseRepresentation
bin11011011111011…
…11110001110101
3121001221201112202
431233233301311
5433014322102
634514554245
75500145216
oct1557576165
9531851482
10230620277
111091a7478
1265298985
1338a18704
14228b340d
15153a6e02
hexdbefc75

230620277 has 2 divisors, whose sum is σ = 230620278. Its totient is φ = 230620276.

The previous prime is 230620219. The next prime is 230620279. The reversal of 230620277 is 772026032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163609681 + 67010596 = 12791^2 + 8186^2 .

It is a cyclic number.

It is not a de Polignac number, because 230620277 - 210 = 230619253 is a prime.

Together with 230620279, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p12674810 and since 230620277 and 12674810 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230620279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115310138 + 115310139.

It is an arithmetic number, because the mean of its divisors is an integer number (115310139).

Almost surely, 2230620277 is an apocalyptic number.

It is an amenable number.

230620277 is a deficient number, since it is larger than the sum of its proper divisors (1).

230620277 is an equidigital number, since it uses as much as digits as its factorization.

230620277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 230620277 is about 15186.1870461285. The cubic root of 230620277 is about 613.2428544528.

The spelling of 230620277 in words is "two hundred thirty million, six hundred twenty thousand, two hundred seventy-seven".