Search a number
-
+
6728101 is a prime number
BaseRepresentation
bin11001101010100110100101
3110122211012221
4121222212211
53210244401
6400112341
7111121312
oct31524645
913584187
106728101
113885a16
1223056b1
131517533
14c71d09
158cd7a1
hex66a9a5

6728101 has 2 divisors, whose sum is σ = 6728102. Its totient is φ = 6728100.

The previous prime is 6728083. The next prime is 6728123. The reversal of 6728101 is 1018276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6604900 + 123201 = 2570^2 + 351^2 .

It is a cyclic number.

It is not a de Polignac number, because 6728101 - 211 = 6726053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6728131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3364050 + 3364051.

It is an arithmetic number, because the mean of its divisors is an integer number (3364051).

Almost surely, 26728101 is an apocalyptic number.

6728101 is the 1641-st centered pentagonal number.

It is an amenable number.

6728101 is a deficient number, since it is larger than the sum of its proper divisors (1).

6728101 is an equidigital number, since it uses as much as digits as its factorization.

6728101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 6728101 is about 2593.8583230393. The cubic root of 6728101 is about 188.7835582044.

The spelling of 6728101 in words is "six million, seven hundred twenty-eight thousand, one hundred one".