Search a number
-
+
2890949 is a prime number
BaseRepresentation
bin1011000001110011000101
312102212122012
423001303011
51220002244
6141544005
733400265
oct13016305
95385565
102890949
1116a5016
12b75005
137a2b29
145537a5
153c189e
hex2c1cc5

2890949 has 2 divisors, whose sum is σ = 2890950. Its totient is φ = 2890948.

The previous prime is 2890919. The next prime is 2890957. The reversal of 2890949 is 9490982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 1014049 = 1370^2 + 1007^2 .

It is a cyclic number.

It is not a de Polignac number, because 2890949 - 216 = 2825413 is a prime.

It is a super-2 number, since 2×28909492 = 16715172241202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2890919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445474 + 1445475.

It is an arithmetic number, because the mean of its divisors is an integer number (1445475).

22890949 is an apocalyptic number.

It is an amenable number.

2890949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2890949 is an equidigital number, since it uses as much as digits as its factorization.

2890949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 2890949 is about 1700.2790947371. The cubic root of 2890949 is about 142.4558024417.

The spelling of 2890949 in words is "two million, eight hundred ninety thousand, nine hundred forty-nine".