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2889725 = 52115589
BaseRepresentation
bin1011000001011111111101
312102210221212
423001133331
51214432400
6141534205
733363566
oct13013775
95383855
102889725
1116a4103
12b74365
137a23c7
1455316d
153c1335
hex2c17fd

2889725 has 6 divisors (see below), whose sum is σ = 3583290. Its totient is φ = 2311760.

The previous prime is 2889707. The next prime is 2889739. The reversal of 2889725 is 5279882.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 597529 + 2292196 = 773^2 + 1514^2 .

It is not a de Polignac number, because 2889725 - 214 = 2873341 is a prime.

It is a d-powerful number, because it can be written as 215 + 84 + 84 + 94 + 77 + 216 + 59 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57770 + ... + 57819.

It is an arithmetic number, because the mean of its divisors is an integer number (597215).

22889725 is an apocalyptic number.

2889725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2889725 is a deficient number, since it is larger than the sum of its proper divisors (693565).

2889725 is a wasteful number, since it uses less digits than its factorization.

2889725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115599 (or 115594 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 2889725 is about 1699.9191157229. The cubic root of 2889725 is about 142.4356947982.

The spelling of 2889725 in words is "two million, eight hundred eighty-nine thousand, seven hundred twenty-five".

Divisors: 1 5 25 115589 577945 2889725