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2882989 = 732541
BaseRepresentation
bin1010111111110110101101
312102110201101
422333312231
51214223424
6141443101
733335134
oct12776655
95373641
102882989
11169a03a
12b70491
1379c315
1455091b
153be344
hex2bfdad

2882989 has 6 divisors (see below), whose sum is σ = 2928426. Its totient is φ = 2838240.

The previous prime is 2882963. The next prime is 2882993. The reversal of 2882989 is 9892882.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 455625 + 2427364 = 675^2 + 1558^2 .

It is not a de Polignac number, because 2882989 - 219 = 2358701 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 (2882389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5059 + ... + 5599.

It is an arithmetic number, because the mean of its divisors is an integer number (488071).

22882989 is an apocalyptic number.

It is an amenable number.

2882989 is a deficient number, since it is larger than the sum of its proper divisors (45437).

2882989 is an frugal number, since it uses more digits than its factorization.

2882989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 614 counting only the distinct ones).

The product of its digits is 165888, while the sum is 46.

The square root of 2882989 is about 1697.9366890435. The cubic root of 2882989 is about 142.3249353196.

The spelling of 2882989 in words is "two million, eight hundred eighty-two thousand, nine hundred eighty-nine".

Divisors: 1 73 541 5329 39493 2882989