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230000389 is a prime number
BaseRepresentation
bin11011011010110…
…00011100000101
3121000210020012221
431231120130011
5432340003024
634453412341
75461654033
oct1555303405
9530706187
10230000389
11108913773
126503a0b1
133885c508
1422791553
15152d33e4
hexdb58705

230000389 has 2 divisors, whose sum is σ = 230000390. Its totient is φ = 230000388.

The previous prime is 230000383. The next prime is 230000401. The reversal of 230000389 is 983000032.

It is a happy number.

230000389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196476289 + 33524100 = 14017^2 + 5790^2 .

It is a cyclic number.

It is not a de Polignac number, because 230000389 - 25 = 230000357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230000383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115000194 + 115000195.

It is an arithmetic number, because the mean of its divisors is an integer number (115000195).

Almost surely, 2230000389 is an apocalyptic number.

It is an amenable number.

230000389 is a deficient number, since it is larger than the sum of its proper divisors (1).

230000389 is an equidigital number, since it uses as much as digits as its factorization.

230000389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 230000389 is about 15165.7637130479. The cubic root of 230000389 is about 612.6929129392.

The spelling of 230000389 in words is "two hundred thirty million, three hundred eighty-nine", and thus it is an aban number.