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2182989 = 33123473
BaseRepresentation
bin1000010100111101001101
311002220111110
420110331031
51024323424
6114442233
724361254
oct10247515
94086443
102182989
111261126
12893379
135b5813
1440b79b
152d1c29
hex214f4d

2182989 has 8 divisors (see below), whose sum is σ = 3004672. Its totient is φ = 1408320.

The previous prime is 2182949. The next prime is 2182991. The reversal of 2182989 is 9892812.

2182989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2182989 - 215 = 2150221 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11644 + ... + 11829.

It is an arithmetic number, because the mean of its divisors is an integer number (375584).

22182989 is an apocalyptic number.

It is an amenable number.

2182989 is a deficient number, since it is larger than the sum of its proper divisors (821683).

2182989 is a wasteful number, since it uses less digits than its factorization.

2182989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23507.

The product of its digits is 20736, while the sum is 39.

The square root of 2182989 is about 1477.4941624250. The cubic root of 2182989 is about 129.7230593640.

The spelling of 2182989 in words is "two million, one hundred eighty-two thousand, nine hundred eighty-nine".

Divisors: 1 3 31 93 23473 70419 727663 2182989