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390230123 is a prime number
BaseRepresentation
bin10111010000100…
…111000001101011
31000012021202002112
4113100213001223
51244344330443
6102415552535
712445621103
oct2720470153
91005252075
10390230123
11190302738
12aa82b74b
1362b006ca
1439b80203
15243d3b18
hex1742706b

390230123 has 2 divisors, whose sum is σ = 390230124. Its totient is φ = 390230122.

The previous prime is 390230111. The next prime is 390230131. The reversal of 390230123 is 321032093.

It is a strong prime.

It is an emirp because it is prime and its reverse (321032093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390230123 - 28 = 390229867 is a prime.

It is not a weakly prime, because it can be changed into another prime (390230623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195115061 + 195115062.

It is an arithmetic number, because the mean of its divisors is an integer number (195115062).

Almost surely, 2390230123 is an apocalyptic number.

390230123 is a deficient number, since it is larger than the sum of its proper divisors (1).

390230123 is an equidigital number, since it uses as much as digits as its factorization.

390230123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 390230123 is about 19754.2431644444. The cubic root of 390230123 is about 730.7580310041.

The spelling of 390230123 in words is "three hundred ninety million, two hundred thirty thousand, one hundred twenty-three".