Search a number
-
+
105923 = 731451
BaseRepresentation
bin11001110111000011
312101022002
4121313003
511342143
62134215
7620546
oct316703
9171262
10105923
1172644
125136b
133929c
142a85d
15215b8
hex19dc3

105923 has 4 divisors (see below), whose sum is σ = 107448. Its totient is φ = 104400.

The previous prime is 105913. The next prime is 105929. The reversal of 105923 is 329501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329501 = 536217.

It is a cyclic number.

It is not a de Polignac number, because 105923 - 24 = 105907 is a prime.

It is a super-2 number, since 2×1059232 = 22439363858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105895 and 105904.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 105923.

It is not an unprimeable number, because it can be changed into a prime (105929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653 + ... + 798.

It is an arithmetic number, because the mean of its divisors is an integer number (26862).

2105923 is an apocalyptic number.

105923 is a deficient number, since it is larger than the sum of its proper divisors (1525).

105923 is an equidigital number, since it uses as much as digits as its factorization.

105923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 105923 is about 325.4581386292. The cubic root of 105923 is about 47.3147726386.

The spelling of 105923 in words is "one hundred five thousand, nine hundred twenty-three".

Divisors: 1 73 1451 105923