Search a number
-
+
2980839 = 32833511
BaseRepresentation
bin1011010111101111100111
312121102221110
423113233213
51230341324
6143520103
734223331
oct13275747
95542843
102980839
111756604
12bb9033
13804a14
14578451
153dd329
hex2d7be7

2980839 has 8 divisors (see below), whose sum is σ = 3989632. Its totient is φ = 1979640.

The previous prime is 2980829. The next prime is 2980843. The reversal of 2980839 is 9380892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2980839 - 27 = 2980711 is a prime.

It is a super-2 number, since 2×29808392 = 17770802287842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2980797 and 2980806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2980819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907 + ... + 2604.

It is an arithmetic number, because the mean of its divisors is an integer number (498704).

22980839 is an apocalyptic number.

2980839 is a deficient number, since it is larger than the sum of its proper divisors (1008793).

2980839 is a wasteful number, since it uses less digits than its factorization.

2980839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 2980839 is about 1726.5106428864. The cubic root of 2980839 is about 143.9172460477.

The spelling of 2980839 in words is "two million, nine hundred eighty thousand, eight hundred thirty-nine".

Divisors: 1 3 283 849 3511 10533 993613 2980839