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2947983 = 31951719
BaseRepresentation
bin1011001111101110001111
312112202212120
423033232033
51223313413
6143104023
734025463
oct13175617
95482776
102947983
111733955
12ba2013
137c2a8c
1456a4a3
153d3723
hex2cfb8f

2947983 has 8 divisors (see below), whose sum is σ = 4137600. Its totient is φ = 1861848.

The previous prime is 2947949. The next prime is 2947999. The reversal of 2947983 is 3897492.

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

It is not a de Polignac number, because 2947983 - 29 = 2947471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25803 + ... + 25916.

It is an arithmetic number, because the mean of its divisors is an integer number (517200).

22947983 is an apocalyptic number.

2947983 is a deficient number, since it is larger than the sum of its proper divisors (1189617).

2947983 is a wasteful number, since it uses less digits than its factorization.

2947983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51741.

The product of its digits is 108864, while the sum is 42.

The square root of 2947983 is about 1716.9691319299. The cubic root of 2947983 is about 143.3865201329.

The spelling of 2947983 in words is "two million, nine hundred forty-seven thousand, nine hundred eighty-three".

Divisors: 1 3 19 57 51719 155157 982661 2947983