Search a number
-
+
2281013 = 7378807
BaseRepresentation
bin1000101100111000110101
311021212221222
420230320311
51040443023
6120520125
725250120
oct10547065
94255858
102281013
111318839
12920045
1361b317
144353b7
15300cc8
hex22ce35

2281013 has 8 divisors (see below), whose sum is σ = 2677632. Its totient is φ = 1902096.

The previous prime is 2281003. The next prime is 2281033. The reversal of 2281013 is 3101822.

2281013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2281013 - 220 = 1232437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2280982 and 2281000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281003) 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 7 ways as a sum of consecutive naturals, for example, 4145 + ... + 4662.

It is an arithmetic number, because the mean of its divisors is an integer number (334704).

22281013 is an apocalyptic number.

It is an amenable number.

2281013 is a deficient number, since it is larger than the sum of its proper divisors (396619).

2281013 is an equidigital number, since it uses as much as digits as its factorization.

2281013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8851.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2281013 is about 1510.3022876232. The cubic root of 2281013 is about 131.6363768028.

Multiplying 2281013 by its sum of digits (17), we get a triangular number (38777221 = T8806).

Adding to 2281013 its reverse (3101822), we get a palindrome (5382835).

The spelling of 2281013 in words is "two million, two hundred eighty-one thousand, thirteen".

Divisors: 1 7 37 259 8807 61649 325859 2281013