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2890565 = 51930427
BaseRepresentation
bin1011000001101101000101
312102212002222
423001231011
51214444230
6141542125
733366206
oct13015505
95385088
102890565
1116a47a7
12b74945
137a28c2
145535ad
153c16e5
hex2c1b45

2890565 has 8 divisors (see below), whose sum is σ = 3651360. Its totient is φ = 2190672.

The previous prime is 2890529. The next prime is 2890577. The reversal of 2890565 is 5650982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2890565 - 214 = 2874181 is a prime.

It is a super-3 number, since 3×28905653 = 72455185732083336375, which contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 15119 + ... + 15308.

It is an arithmetic number, because the mean of its divisors is an integer number (456420).

22890565 is an apocalyptic number.

It is an amenable number.

2890565 is a deficient number, since it is larger than the sum of its proper divisors (760795).

2890565 is a wasteful number, since it uses less digits than its factorization.

2890565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30451.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 2890565 is about 1700.1661683494. The cubic root of 2890565 is about 142.4494947725.

The spelling of 2890565 in words is "two million, eight hundred ninety thousand, five hundred sixty-five".

Divisors: 1 5 19 95 30427 152135 578113 2890565