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5245541531 = 31259167809
BaseRepresentation
bin1001110001010100…
…01001110010011011
3111112120102010012222
410320222021302123
541220324312111
62224302054255
7243663236666
oct47052116233
914476363188
105245541531
112251a75a9a
12102487a38b
1365799cb39
1437a93a6dd
1520a7a97db
hex138a89c9b

5245541531 has 4 divisors (see below), whose sum is σ = 5245740600. Its totient is φ = 5245342464.

The previous prime is 5245541449. The next prime is 5245541533. The reversal of 5245541531 is 1351455425.

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

It is a cyclic number.

It is not a de Polignac number, because 5245541531 - 214 = 5245525147 is a prime.

It is a super-2 number, since 2×52455415312 = 55031411906891647922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5245541491 and 5245541500.

It is not an unprimeable number, because it can be changed into a prime (5245541533) 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, 52646 + ... + 115163.

It is an arithmetic number, because the mean of its divisors is an integer number (1311435150).

Almost surely, 25245541531 is an apocalyptic number.

5245541531 is a deficient number, since it is larger than the sum of its proper divisors (199069).

5245541531 is a wasteful number, since it uses less digits than its factorization.

5245541531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199068.

The product of its digits is 60000, while the sum is 35.

The square root of 5245541531 is about 72426.1108371836. The cubic root of 5245541531 is about 1737.5211908186.

Adding to 5245541531 its reverse (1351455425), we get a palindrome (6596996956).

The spelling of 5245541531 in words is "five billion, two hundred forty-five million, five hundred forty-one thousand, five hundred thirty-one".

Divisors: 1 31259 167809 5245541531