Search a number
-
+
2540231105 = 5508046221
BaseRepresentation
bin1001011101101000…
…1101100111000001
320120000220002222112
42113122031213001
520200244343410
61100021545105
7116643415406
oct22732154701
96500802875
102540231105
111093992255
125aa875195
13316377239
141a15242ad
15ed026105
hex9768d9c1

2540231105 has 4 divisors (see below), whose sum is σ = 3048277332. Its totient is φ = 2032184880.

The previous prime is 2540231081. The next prime is 2540231107. The reversal of 2540231105 is 5011320452.

2540231105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 399040576 + 2141190529 = 19976^2 + 46273^2 .

It is not a de Polignac number, because 2540231105 - 210 = 2540230081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540231107) 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, 254023106 + ... + 254023115.

It is an arithmetic number, because the mean of its divisors is an integer number (762069333).

Almost surely, 22540231105 is an apocalyptic number.

It is an amenable number.

2540231105 is a deficient number, since it is larger than the sum of its proper divisors (508046227).

2540231105 is an equidigital number, since it uses as much as digits as its factorization.

2540231105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508046226.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2540231105 is about 50400.7054018096. The cubic root of 2540231105 is about 1364.4503693133.

Adding to 2540231105 its reverse (5011320452), we get a palindrome (7551551557).

The spelling of 2540231105 in words is "two billion, five hundred forty million, two hundred thirty-one thousand, one hundred five".

Divisors: 1 5 508046221 2540231105