Search a number
-
+
2979841 is a prime number
BaseRepresentation
bin1011010111100000000001
312121101120111
423113200001
51230323331
6143511321
734220404
oct13274001
95541514
102979841
111755887
12bb8541
13804427
14577d3b
153dcdb1
hex2d7801

2979841 has 2 divisors, whose sum is σ = 2979842. Its totient is φ = 2979840.

The previous prime is 2979833. The next prime is 2979863. The reversal of 2979841 is 1489792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 848241 = 1460^2 + 921^2 .

It is a cyclic number.

It is not a de Polignac number, because 2979841 - 23 = 2979833 is a prime.

2979841 is a lucky number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2979794 and 2979803.

It is not a weakly prime, because it can be changed into another prime (2979541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489920 + 1489921.

It is an arithmetic number, because the mean of its divisors is an integer number (1489921).

It is a Proth number, since it is equal to 1455 ⋅ 211 + 1 and 1455 < 211.

22979841 is an apocalyptic number.

It is an amenable number.

2979841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2979841 is an equidigital number, since it uses as much as digits as its factorization.

2979841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 2979841 is about 1726.2215964354. The cubic root of 2979841 is about 143.9011828472.

The spelling of 2979841 in words is "two million, nine hundred seventy-nine thousand, eight hundred forty-one".