Search a number
-
+
2870089 is a prime number
BaseRepresentation
bin1010111100101101001001
312101211000121
422330231021
51213320324
6141303241
733252415
oct12745511
95354017
102870089
111690382
12b64b21
137964a1
14549d45
153ba5e4
hex2bcb49

2870089 has 2 divisors, whose sum is σ = 2870090. Its totient is φ = 2870088.

The previous prime is 2870081. The next prime is 2870099. The reversal of 2870089 is 9800782.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2862864 + 7225 = 1692^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 2870089 - 23 = 2870081 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2870081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1435044 + 1435045.

It is an arithmetic number, because the mean of its divisors is an integer number (1435045).

22870089 is an apocalyptic number.

It is an amenable number.

2870089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2870089 is an equidigital number, since it uses as much as digits as its factorization.

2870089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2870089 is about 1694.1337019256. The cubic root of 2870089 is about 142.1123391923.

The spelling of 2870089 in words is "two million, eight hundred seventy thousand, eighty-nine".