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2204980 = 225412689
BaseRepresentation
bin1000011010010100110100
311011000122221
420122110310
51031024410
6115132124
724512341
oct10322464
94130587
102204980
1112766a8
128a4044
135c282b
144157c8
152d84da
hex21a534

2204980 has 24 divisors (see below), whose sum is σ = 4745160. Its totient is φ = 860160.

The previous prime is 2204977. The next prime is 2205001. The reversal of 2204980 is 894022.

2204980 = T75 + T76 + ... + T238.

It can be written as a sum of positive squares in 4 ways, for example, as 142884 + 2062096 = 378^2 + 1436^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525 + ... + 2164.

It is an arithmetic number, because the mean of its divisors is an integer number (197715).

22204980 is an apocalyptic number.

2204980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204980 is an abundant number, since it is smaller than the sum of its proper divisors (2540180).

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

2204980 is a wasteful number, since it uses less digits than its factorization.

2204980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739 (or 2737 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2204980 is about 1484.9175061262. The cubic root of 2204980 is about 130.1572062668.

The spelling of 2204980 in words is "two million, two hundred four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 2689 5378 10756 13445 26890 53780 110249 220498 440996 551245 1102490 2204980