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16408201 is a prime number
BaseRepresentation
bin111110100101…
…111010001001
31010212121211011
4332211322021
513200030301
61343403521
7256316215
oct76457211
933777734
1016408201
1192977a7
1255b35a1
1335265c4
142271945
151691a51
hexfa5e89

16408201 has 2 divisors, whose sum is σ = 16408202. Its totient is φ = 16408200.

The previous prime is 16408199. The next prime is 16408211. The reversal of 16408201 is 10280461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11048976 + 5359225 = 3324^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 16408201 - 21 = 16408199 is a prime.

Together with 16408199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16408211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8204100 + 8204101.

It is an arithmetic number, because the mean of its divisors is an integer number (8204101).

Almost surely, 216408201 is an apocalyptic number.

It is an amenable number.

16408201 is a deficient number, since it is larger than the sum of its proper divisors (1).

16408201 is an equidigital number, since it uses as much as digits as its factorization.

16408201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 16408201 is about 4050.7037660140. The cubic root of 16408201 is about 254.1091611310.

Adding to 16408201 its reverse (10280461), we get a palindrome (26688662).

The spelling of 16408201 in words is "sixteen million, four hundred eight thousand, two hundred one".