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2842889 = 7478641
BaseRepresentation
bin1010110110000100001001
312100102201012
422312010021
51211433024
6140533305
733110210
oct12660411
95312635
102842889
1116719a5
12b51235
13786caa
14540077
153b250e
hex2b6109

2842889 has 8 divisors (see below), whose sum is σ = 3318528. Its totient is φ = 2384640.

The previous prime is 2842871. The next prime is 2842891. The reversal of 2842889 is 9882482.

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 2842889 - 216 = 2777353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2842849) 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, 3992 + ... + 4649.

It is an arithmetic number, because the mean of its divisors is an integer number (414816).

22842889 is an apocalyptic number.

It is an amenable number.

2842889 is a deficient number, since it is larger than the sum of its proper divisors (475639).

2842889 is an equidigital number, since it uses as much as digits as its factorization.

2842889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8695.

The product of its digits is 73728, while the sum is 41.

The square root of 2842889 is about 1686.0868898132. The cubic root of 2842889 is about 141.6619778533.

The spelling of 2842889 in words is "two million, eight hundred forty-two thousand, eight hundred eighty-nine".

Divisors: 1 7 47 329 8641 60487 406127 2842889