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385916423 is a prime number
BaseRepresentation
bin10111000000001…
…001111000000111
3222220011120210212
4113000021320013
51242243311143
6102143310035
712364143524
oct2700117007
9886146725
10385916423
111889267a2
12a92ab31b
1361c50119
143937a14b
1523d30918
hex17009e07

385916423 has 2 divisors, whose sum is σ = 385916424. Its totient is φ = 385916422.

The previous prime is 385916417. The next prime is 385916513. The reversal of 385916423 is 324619583.

It is a weak prime.

It is an emirp because it is prime and its reverse (324619583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385916423 - 212 = 385912327 is a prime.

It is a super-2 number, since 2×3859164232 = 297862971082229858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385916023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192958211 + 192958212.

It is an arithmetic number, because the mean of its divisors is an integer number (192958212).

Almost surely, 2385916423 is an apocalyptic number.

385916423 is a deficient number, since it is larger than the sum of its proper divisors (1).

385916423 is an equidigital number, since it uses as much as digits as its factorization.

385916423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 385916423 is about 19644.7556105949. The cubic root of 385916423 is about 728.0553880241.

The spelling of 385916423 in words is "three hundred eighty-five million, nine hundred sixteen thousand, four hundred twenty-three".