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12163983 = 313311897
BaseRepresentation
bin101110011001…
…101110001111
3211212222211220
4232121232033
511103221413
61112414423
7205251336
oct56315617
924788756
1012163983
116958a87
1240a7413
13269b830
141888d1d
151104223
hexb99b8f

12163983 has 8 divisors (see below), whose sum is σ = 17466288. Its totient is φ = 7485504.

The previous prime is 12163979. The next prime is 12163999. The reversal of 12163983 is 38936121.

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

It is not a de Polignac number, because 12163983 - 22 = 12163979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12163973) 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, 155910 + ... + 155987.

It is an arithmetic number, because the mean of its divisors is an integer number (2183286).

Almost surely, 212163983 is an apocalyptic number.

12163983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12163983 is a deficient number, since it is larger than the sum of its proper divisors (5302305).

12163983 is a wasteful number, since it uses less digits than its factorization.

12163983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311913.

The product of its digits is 7776, while the sum is 33.

The square root of 12163983 is about 3487.6902098667. The cubic root of 12163983 is about 229.9809877164.

The spelling of 12163983 in words is "twelve million, one hundred sixty-three thousand, nine hundred eighty-three".

Divisors: 1 3 13 39 311897 935691 4054661 12163983