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5249525761 = 1731068497
BaseRepresentation
bin1001110001110010…
…10110100000000001
3111112211220112120001
410320321112200001
541222334311021
62224523320001
7244042142554
oct47071264001
914484815501
105249525761
112254247447
121026080001
1365876647c
1437b29669b
1520ace5091
hex138e56801

5249525761 has 8 divisors (see below), whose sum is σ = 5577559560. Its totient is φ = 4940725504.

The previous prime is 5249525737. The next prime is 5249525791. The reversal of 5249525761 is 1675259425.

It can be written as a sum of positive squares in 4 ways, for example, as 630964161 + 4618561600 = 25119^2 + 67960^2 .

It is not a de Polignac number, because 5249525761 - 219 = 5249001473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5249525791) 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 7 ways as a sum of consecutive naturals, for example, 529336 + ... + 539161.

It is an arithmetic number, because the mean of its divisors is an integer number (697194945).

Almost surely, 25249525761 is an apocalyptic number.

It is an amenable number.

5249525761 is a deficient number, since it is larger than the sum of its proper divisors (328033799).

5249525761 is an equidigital number, since it uses as much as digits as its factorization.

5249525761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068548 (or 1068514 counting only the distinct ones).

The product of its digits is 756000, while the sum is 46.

The square root of 5249525761 is about 72453.6110970323. The cubic root of 5249525761 is about 1737.9609885690.

The spelling of 5249525761 in words is "five billion, two hundred forty-nine million, five hundred twenty-five thousand, seven hundred sixty-one".

Divisors: 1 17 289 4913 1068497 18164449 308795633 5249525761