Search a number
-
+
4138261 is a prime number
BaseRepresentation
bin1111110010010100010101
321210020121221
433302110111
52024411021
6224410341
750113621
oct17622425
97706557
104138261
112377156
1214769b1
13b1b79a
1479a181
1556b241
hex3f2515

4138261 has 2 divisors, whose sum is σ = 4138262. Its totient is φ = 4138260.

The previous prime is 4138249. The next prime is 4138279. The reversal of 4138261 is 1628314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4100625 + 37636 = 2025^2 + 194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4138261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4138241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069130 + 2069131.

It is an arithmetic number, because the mean of its divisors is an integer number (2069131).

Almost surely, 24138261 is an apocalyptic number.

It is an amenable number.

4138261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138261 is an equidigital number, since it uses as much as digits as its factorization.

4138261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 4138261 is about 2034.2716141165. The cubic root of 4138261 is about 160.5483917060.

The spelling of 4138261 in words is "four million, one hundred thirty-eight thousand, two hundred sixty-one".