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2485274521 = 4909506269
BaseRepresentation
bin1001010000100010…
…0100011110011001
320102012111000201111
42110020210132121
520042212241041
61050340020321
7115405325212
oct22410443631
96365430644
102485274521
111065966594
125943916a1
13307b74a52
141980da409
15e82bc981
hex94224799

2485274521 has 4 divisors (see below), whose sum is σ = 2485785700. Its totient is φ = 2484763344.

The previous prime is 2485274501. The next prime is 2485274527. The reversal of 2485274521 is 1254725842.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1254725842 = 2627362921.

It can be written as a sum of positive squares in 2 ways, for example, as 1911001225 + 574273296 = 43715^2 + 23964^2 .

It is a cyclic number.

It is not a de Polignac number, because 2485274521 - 223 = 2476885913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2485274527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248226 + ... + 258043.

It is an arithmetic number, because the mean of its divisors is an integer number (621446425).

Almost surely, 22485274521 is an apocalyptic number.

It is an amenable number.

2485274521 is a deficient number, since it is larger than the sum of its proper divisors (511179).

2485274521 is an equidigital number, since it uses as much as digits as its factorization.

2485274521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511178.

The product of its digits is 179200, while the sum is 40.

The square root of 2485274521 is about 49852.5277292937. The cubic root of 2485274521 is about 1354.5388191923.

The spelling of 2485274521 in words is "two billion, four hundred eighty-five million, two hundred seventy-four thousand, five hundred twenty-one".

Divisors: 1 4909 506269 2485274521