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12723983 = 8321847
BaseRepresentation
bin110000100010…
…011100001111
3212221110000122
4300202130033
511224131413
61132415155
7213103106
oct60423417
925843018
1012723983
117200798
1243174bb
1328366ac
14199303d
1511b5108
hexc2270f

12723983 has 6 divisors (see below), whose sum is σ = 12886104. Its totient is φ = 12563876.

The previous prime is 12723979. The next prime is 12724009. The reversal of 12723983 is 38932721.

It is not a de Polignac number, because 12723983 - 22 = 12723979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12723923) 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 5 ways as a sum of consecutive naturals, for example, 5966 + ... + 7812.

It is an arithmetic number, because the mean of its divisors is an integer number (2147684).

Almost surely, 212723983 is an apocalyptic number.

12723983 is a deficient number, since it is larger than the sum of its proper divisors (162121).

12723983 is an frugal number, since it uses more digits than its factorization.

12723983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013 (or 1930 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 12723983 is about 3567.0692451928. The cubic root of 12723983 is about 233.4574262826.

The spelling of 12723983 in words is "twelve million, seven hundred twenty-three thousand, nine hundred eighty-three".

Divisors: 1 83 1847 6889 153301 12723983