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2685289 = 19791789
BaseRepresentation
bin1010001111100101101001
312001102112011
422033211221
51141412124
6133315521
731552555
oct12174551
95042464
102685289
111574552
12a95ba1
13730339
144dc865
15380994
hex28f969

2685289 has 8 divisors (see below), whose sum is σ = 2864000. Its totient is φ = 2510352.

The previous prime is 2685259. The next prime is 2685301. The reversal of 2685289 is 9825862.

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 2685289 - 25 = 2685257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607 + ... + 2395.

It is an arithmetic number, because the mean of its divisors is an integer number (358000).

22685289 is an apocalyptic number.

It is an amenable number.

2685289 is a deficient number, since it is larger than the sum of its proper divisors (178711).

2685289 is a wasteful number, since it uses less digits than its factorization.

2685289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887.

The product of its digits is 69120, while the sum is 40.

The square root of 2685289 is about 1638.6851436441. The cubic root of 2685289 is about 138.9943064797.

The spelling of 2685289 in words is "two million, six hundred eighty-five thousand, two hundred eighty-nine".

Divisors: 1 19 79 1501 1789 33991 141331 2685289