Search a number
-
+
2988389 is a prime number
BaseRepresentation
bin1011011001100101100101
312121211022002
423121211211
51231112024
6144015045
734254335
oct13314545
95554262
102988389
111761248
121001485
138082a1
1457b0c5
153e06ae
hex2d9965

2988389 has 2 divisors, whose sum is σ = 2988390. Its totient is φ = 2988388.

The previous prime is 2988373. The next prime is 2988407. The reversal of 2988389 is 9838892.

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., 2455489 + 532900 = 1567^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 2988389 - 24 = 2988373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2988289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1494194 + 1494195.

It is an arithmetic number, because the mean of its divisors is an integer number (1494195).

22988389 is an apocalyptic number.

It is an amenable number.

2988389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2988389 is an equidigital number, since it uses as much as digits as its factorization.

2988389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 47.

The square root of 2988389 is about 1728.6957511373. The cubic root of 2988389 is about 144.0386502476.

The spelling of 2988389 in words is "two million, nine hundred eighty-eight thousand, three hundred eighty-nine".