Search a number
-
+
2041481 = 13157037
BaseRepresentation
bin111110010011010001001
310211201101102
413302122021
51010311411
6111431145
723231561
oct7623211
93751342
102041481
111174882
128254b5
135662a0
143b1da1
152a4d3b
hex1f2689

2041481 has 4 divisors (see below), whose sum is σ = 2198532. Its totient is φ = 1884432.

The previous prime is 2041477. The next prime is 2041483. The reversal of 2041481 is 1841402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1841402 = 2920701.

It can be written as a sum of positive squares in 2 ways, for example, as 739600 + 1301881 = 860^2 + 1141^2 .

It is a cyclic number.

It is not a de Polignac number, because 2041481 - 22 = 2041477 is a prime.

It is a super-2 number, since 2×20414812 = 8335289346722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2041483) 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 3 ways as a sum of consecutive naturals, for example, 78506 + ... + 78531.

It is an arithmetic number, because the mean of its divisors is an integer number (549633).

22041481 is an apocalyptic number.

It is an amenable number.

2041481 is a deficient number, since it is larger than the sum of its proper divisors (157051).

2041481 is a wasteful number, since it uses less digits than its factorization.

2041481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157050.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 2041481 is about 1428.8040453470. The cubic root of 2041481 is about 126.8571978711.

Adding to 2041481 its reverse (1841402), we get a palindrome (3882883).

The spelling of 2041481 in words is "two million, forty-one thousand, four hundred eighty-one".

Divisors: 1 13 157037 2041481