Search a number
-
+
2961289 is a prime number
BaseRepresentation
bin1011010010111110001001
312120110010101
423102332021
51224230124
6143245401
734112332
oct13227611
95513111
102961289
111742951
12ba9861
137c8b56
14571289
153d7644
hex2d2f89

2961289 has 2 divisors, whose sum is σ = 2961290. Its totient is φ = 2961288.

The previous prime is 2961271. The next prime is 2961311. The reversal of 2961289 is 9821692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2890000 + 71289 = 1700^2 + 267^2 .

It is a cyclic number.

It is not a de Polignac number, because 2961289 - 221 = 864137 is a prime.

It is a Chen prime.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (2961209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1480644 + 1480645.

It is an arithmetic number, because the mean of its divisors is an integer number (1480645).

22961289 is an apocalyptic number.

It is an amenable number.

2961289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2961289 is an equidigital number, since it uses as much as digits as its factorization.

2961289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 2961289 is about 1720.8396206503. The cubic root of 2961289 is about 143.6019259110.

The spelling of 2961289 in words is "two million, nine hundred sixty-one thousand, two hundred eighty-nine".