Search a number
-
+
2201047 = 2638369
BaseRepresentation
bin1000011001010111010111
311010211021021
420121113113
51030413142
6115102011
724465022
oct10312727
94124237
102201047
111273752
128a1907
135c0ac4
144141b9
152d7267
hex2195d7

2201047 has 4 divisors (see below), whose sum is σ = 2209680. Its totient is φ = 2192416.

The previous prime is 2201039. The next prime is 2201051. The reversal of 2201047 is 7401022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7401022 = 23700511.

It is a cyclic number.

It is not a de Polignac number, because 2201047 - 23 = 2201039 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202047) 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, 3922 + ... + 4447.

It is an arithmetic number, because the mean of its divisors is an integer number (552420).

22201047 is an apocalyptic number.

2201047 is a deficient number, since it is larger than the sum of its proper divisors (8633).

2201047 is an equidigital number, since it uses as much as digits as its factorization.

2201047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8632.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 2201047 is about 1483.5925990649. The cubic root of 2201047 is about 130.0797735228.

Adding to 2201047 its reverse (7401022), we get a palindrome (9602069).

The spelling of 2201047 in words is "two million, two hundred one thousand, forty-seven".

Divisors: 1 263 8369 2201047