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390412201 is a prime number
BaseRepresentation
bin10111010001010…
…011011110101001
31000012121222212011
4113101103132221
51244421142301
6102423515521
712450306664
oct2721233651
91005558764
10390412201
11190417513
12aa8b8ba1
1362b6554a
1439bca6db
152441ca51
hex174537a9

390412201 has 2 divisors, whose sum is σ = 390412202. Its totient is φ = 390412200.

The previous prime is 390412193. The next prime is 390412223. The reversal of 390412201 is 102214093.

It is an a-pointer prime, because the next prime (390412223) can be obtained adding 390412201 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311557801 + 78854400 = 17651^2 + 8880^2 .

It is a cyclic number.

It is not a de Polignac number, because 390412201 - 23 = 390412193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (390412241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195206100 + 195206101.

It is an arithmetic number, because the mean of its divisors is an integer number (195206101).

Almost surely, 2390412201 is an apocalyptic number.

It is an amenable number.

390412201 is a deficient number, since it is larger than the sum of its proper divisors (1).

390412201 is an equidigital number, since it uses as much as digits as its factorization.

390412201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 390412201 is about 19758.8512064847. The cubic root of 390412201 is about 730.8716684574.

Adding to 390412201 its reverse (102214093), we get a palindrome (492626294).

The spelling of 390412201 in words is "three hundred ninety million, four hundred twelve thousand, two hundred one".