Search a number
-
+
201044213 = 1971020529
BaseRepresentation
bin10111111101110…
…11000011110101
3112000022002210222
423332323003311
5402431403323
631541024125
74660563506
oct1376730365
9460262728
10201044213
11a3536547
12573b5045
1332861696
141c9b4bad
15129b39c8
hexbfbb0f5

201044213 has 4 divisors (see below), whose sum is σ = 202064940. Its totient is φ = 200023488.

The previous prime is 201044209. The next prime is 201044231. The reversal of 201044213 is 312440102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104080804 + 96963409 = 10202^2 + 9847^2 .

It is a cyclic number.

It is not a de Polignac number, because 201044213 - 22 = 201044209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201044191 and 201044200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201044243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510068 + ... + 510461.

It is an arithmetic number, because the mean of its divisors is an integer number (50516235).

Almost surely, 2201044213 is an apocalyptic number.

It is an amenable number.

201044213 is a deficient number, since it is larger than the sum of its proper divisors (1020727).

201044213 is a wasteful number, since it uses less digits than its factorization.

201044213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020726.

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

The square root of 201044213 is about 14179.0060653066. The cubic root of 201044213 is about 585.8195472669.

Adding to 201044213 its reverse (312440102), we get a palindrome (513484315).

The spelling of 201044213 in words is "two hundred one million, forty-four thousand, two hundred thirteen".

Divisors: 1 197 1020529 201044213