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1979049 = 33311993
BaseRepresentation
bin111100011001010101001
310201112202010
413203022221
51001312144
6110230133
722551552
oct7431251
93645663
101979049
111131986
127b5349
13543a47
14397329
152915b9
hex1e32a9

1979049 has 8 divisors (see below), whose sum is σ = 2648032. Its totient is φ = 1314720.

The previous prime is 1979039. The next prime is 1979051. The reversal of 1979049 is 9409791.

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

It is not a de Polignac number, because 1979049 - 215 = 1946281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1978998 and 1979016.

It is not an unprimeable number, because it can be changed into a prime (1979039) 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, 4 + ... + 1989.

It is an arithmetic number, because the mean of its divisors is an integer number (331004).

21979049 is an apocalyptic number.

It is an amenable number.

1979049 is a deficient number, since it is larger than the sum of its proper divisors (668983).

1979049 is a wasteful number, since it uses less digits than its factorization.

1979049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 1979049 is about 1406.7867642255. The cubic root of 1979049 is about 125.5506163452.

The spelling of 1979049 in words is "one million, nine hundred seventy-nine thousand, forty-nine".

Divisors: 1 3 331 993 1993 5979 659683 1979049