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5287244557 = 7755320651
BaseRepresentation
bin1001110110010010…
…01111001100001101
3111122110212212000111
410323021033030031
541312013311212
62232352000021
7245010560110
oct47311171415
914573785014
105287244557
11227356a101
121036830011
1366351189a
143822b4577
1520e295ea7
hex13b24f30d

5287244557 has 4 divisors (see below), whose sum is σ = 6042565216. Its totient is φ = 4531923900.

The previous prime is 5287244539. The next prime is 5287244593. The reversal of 5287244557 is 7554427825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5287244557 - 27 = 5287244429 is a prime.

It is a super-2 number, since 2×52872445572 = 55909910011052252498, which contains 22 as substring.

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 5287244557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5287244507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377660319 + ... + 377660332.

It is an arithmetic number, because the mean of its divisors is an integer number (1510641304).

Almost surely, 25287244557 is an apocalyptic number.

It is an amenable number.

5287244557 is a deficient number, since it is larger than the sum of its proper divisors (755320659).

5287244557 is an equidigital number, since it uses as much as digits as its factorization.

5287244557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755320658.

The product of its digits is 3136000, while the sum is 49.

The square root of 5287244557 is about 72713.4413777810. The cubic root of 5287244557 is about 1742.1135804661.

The spelling of 5287244557 in words is "five billion, two hundred eighty-seven million, two hundred forty-four thousand, five hundred fifty-seven".

Divisors: 1 7 755320651 5287244557