Search a number
-
+
105683289 = 335227763
BaseRepresentation
bin1100100110010…
…01100101011001
321100212021012220
412103021211121
5204023331124
614253054253
72422202355
oct623114531
9240767186
10105683289
1154723468
122b487389
1318b835ba
1410070465
159428879
hex64c9959

105683289 has 4 divisors (see below), whose sum is σ = 140911056. Its totient is φ = 70455524.

The previous prime is 105683273. The next prime is 105683297. The reversal of 105683289 is 982386501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 982386501 = 3327462167.

It is a cyclic number.

It is not a de Polignac number, because 105683289 - 24 = 105683273 is a prime.

It is a super-2 number, since 2×1056832892 = 22337915147715042, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 105683289.

It is not an unprimeable number, because it can be changed into a prime (105683189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17613879 + ... + 17613884.

It is an arithmetic number, because the mean of its divisors is an integer number (35227764).

Almost surely, 2105683289 is an apocalyptic number.

It is an amenable number.

105683289 is a deficient number, since it is larger than the sum of its proper divisors (35227767).

105683289 is an equidigital number, since it uses as much as digits as its factorization.

105683289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35227766.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 105683289 is about 10280.2377890786. The cubic root of 105683289 is about 472.7905349026.

The spelling of 105683289 in words is "one hundred five million, six hundred eighty-three thousand, two hundred eighty-nine".

Divisors: 1 3 35227763 105683289