Search a number
-
+
2409980 = 225412939
BaseRepresentation
bin1001001100010111111100
311112102212112
421030113330
51104104410
6123353152
726325116
oct11142774
94472775
102409980
1113a6721
129827b8
13664c31
1446a3b6
15329105
hex24c5fc

2409980 has 24 divisors (see below), whose sum is σ = 5186160. Its totient is φ = 940160.

The previous prime is 2409947. The next prime is 2409983. The reversal of 2409980 is 899042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2409983) 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, 650 + ... + 2289.

It is an arithmetic number, because the mean of its divisors is an integer number (216090).

22409980 is an apocalyptic number.

2409980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2409980 is an abundant number, since it is smaller than the sum of its proper divisors (2776180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2409980 is a wasteful number, since it uses less digits than its factorization.

2409980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2409980 is about 1552.4110280464. The cubic root of 2409980 is about 134.0719150623.

The spelling of 2409980 in words is "two million, four hundred nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 2939 5878 11756 14695 29390 58780 120499 240998 481996 602495 1204990 2409980