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2890 = 25172
BaseRepresentation
bin101101001010
310222001
4231022
543030
621214
711266
oct5512
93861
102890
112198
12180a
131414
1410a6
15cca
hexb4a

2890 has 12 divisors (see below), whose sum is σ = 5526. Its totient is φ = 1088.

The previous prime is 2887. The next prime is 2897. The reversal of 2890 is 982.

2890 = T6 + T7 + ... + T25.

2890 = 222 + 232 + ... + 262.

2890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2809 + 81 = 53^2 + 9^2 .

2890 is an undulating number in base 13.

It is a plaindrome in base 7.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 162 + ... + 178.

22890 is an apocalyptic number.

2890 is a deficient number, since it is larger than the sum of its proper divisors (2636).

2890 is a wasteful number, since it uses less digits than its factorization.

2890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41 (or 24 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2890 is about 53.7587202229. The cubic root of 2890 is about 14.2440212941.

The spelling of 2890 in words is "two thousand, eight hundred ninety".

Divisors: 1 2 5 10 17 34 85 170 289 578 1445 2890