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2890540 = 2251131279
BaseRepresentation
bin1011000001101100101100
312102212002001
423001230230
51214444130
6141542044
733366142
oct13015454
95385061
102890540
1116a4784
12b74924
137a28a3
14553592
153c16ca
hex2c1b2c

2890540 has 24 divisors (see below), whose sum is σ = 6128640. Its totient is φ = 1145088.

The previous prime is 2890529. The next prime is 2890577. The reversal of 2890540 is 450982.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2890499 and 2890508.

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, 1621 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (255360).

22890540 is an apocalyptic number.

2890540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2890540 is an abundant number, since it is smaller than the sum of its proper divisors (3238100).

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

2890540 is a wasteful number, since it uses less digits than its factorization.

2890540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1399 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2890540 is about 1700.1588161110. The cubic root of 2890540 is about 142.4490840976.

The spelling of 2890540 in words is "two million, eight hundred ninety thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 113 226 452 565 1130 1279 2260 2558 5116 6395 12790 25580 144527 289054 578108 722635 1445270 2890540