Search a number
-
+
2981471 is a prime number
BaseRepresentation
bin1011010111111001011111
312121110210212
423113321133
51230401341
6143523035
734225223
oct13277137
95543725
102981471
111757029
12bb947b
138050ac
14578783
153dd5eb
hex2d7e5f

2981471 has 2 divisors, whose sum is σ = 2981472. Its totient is φ = 2981470.

The previous prime is 2981453. The next prime is 2981483. The reversal of 2981471 is 1741892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2981471 - 214 = 2965087 is a prime.

It is a super-3 number, since 3×29814713 = 79508401659364650333, which contains 333 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2981401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1490735 + 1490736.

It is an arithmetic number, because the mean of its divisors is an integer number (1490736).

22981471 is an apocalyptic number.

2981471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2981471 is an equidigital number, since it uses as much as digits as its factorization.

2981471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 32.

The square root of 2981471 is about 1726.6936613076. The cubic root of 2981471 is about 143.9274164810.

The spelling of 2981471 in words is "two million, nine hundred eighty-one thousand, four hundred seventy-one".