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2389047 = 31316079
BaseRepresentation
bin1001000111010000110111
311111101011020
421013100313
51102422142
6123112223
726210103
oct11072067
94441136
102389047
111391a21
12972673
1365854b
14462903
15322cec
hex247437

2389047 has 8 divisors (see below), whose sum is σ = 3210240. Its totient is φ = 1580280.

The previous prime is 2389043. The next prime is 2389063. The reversal of 2389047 is 7409832.

2389047 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 2389047 - 22 = 2389043 is a prime.

2389047 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2388999 and 2389017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389043) 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, 2647 + ... + 3432.

It is an arithmetic number, because the mean of its divisors is an integer number (401280).

22389047 is an apocalyptic number.

2389047 is a deficient number, since it is larger than the sum of its proper divisors (821193).

2389047 is a wasteful number, since it uses less digits than its factorization.

2389047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6213.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2389047 is about 1545.6542304151. The cubic root of 2389047 is about 133.6826044128.

The spelling of 2389047 in words is "two million, three hundred eighty-nine thousand, forty-seven".

Divisors: 1 3 131 393 6079 18237 796349 2389047