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942989 = 19311601
BaseRepresentation
bin11100110001110001101
31202220112112
43212032031
5220133424
632113405
711005145
oct3461615
91686475
10942989
11594533
12395865
132702a8
141a7925
1513960e
hexe638d

942989 has 8 divisors (see below), whose sum is σ = 1025280. Its totient is φ = 864000.

The previous prime is 942983. The next prime is 943003. The reversal of 942989 is 989249.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-942989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942983) 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, 212 + ... + 1389.

It is an arithmetic number, because the mean of its divisors is an integer number (128160).

2942989 is an apocalyptic number.

It is an amenable number.

942989 is a deficient number, since it is larger than the sum of its proper divisors (82291).

942989 is a wasteful number, since it uses less digits than its factorization.

942989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651.

The product of its digits is 46656, while the sum is 41.

The square root of 942989 is about 971.0762071022. The cubic root of 942989 is about 98.0623301941.

The spelling of 942989 in words is "nine hundred forty-two thousand, nine hundred eighty-nine".

Divisors: 1 19 31 589 1601 30419 49631 942989