Search a number
-
+
2143241 = 17139907
BaseRepresentation
bin1000001011010000001001
311000212222022
420023100021
51022040431
6113534225
724134342
oct10132011
94025868
102143241
111234281
12874375
135a06b9
143db0c9
152c507b
hex20b409

2143241 has 8 divisors (see below), whose sum is σ = 2288160. Its totient is φ = 2000448.

The previous prime is 2143231. The next prime is 2143243. The reversal of 2143241 is 1423412.

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

It is a cyclic number.

It is not a de Polignac number, because 2143241 - 26 = 2143177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1910 + ... + 2816.

It is an arithmetic number, because the mean of its divisors is an integer number (286020).

22143241 is an apocalyptic number.

It is an amenable number.

2143241 is a deficient number, since it is larger than the sum of its proper divisors (144919).

2143241 is a wasteful number, since it uses less digits than its factorization.

2143241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its digits is 192, while the sum is 17.

The square root of 2143241 is about 1463.9812157265. The cubic root of 2143241 is about 128.9308966268.

Adding to 2143241 its reverse (1423412), we get a palindrome (3566653).

The spelling of 2143241 in words is "two million, one hundred forty-three thousand, two hundred forty-one".

Divisors: 1 17 139 907 2363 15419 126073 2143241