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5214944849 = 6537986133
BaseRepresentation
bin1001101101101010…
…11011111001010001
3111110102211122110112
410312311123321101
541140011213344
62221250211105
7243142204562
oct46665337121
914412748415
105214944849
112236778284
121016583a95
136515493aa
14376854169
15207c63c9e
hex136d5be51

5214944849 has 4 divisors (see below), whose sum is σ = 5222931636. Its totient is φ = 5206958064.

The previous prime is 5214944821. The next prime is 5214944851. The reversal of 5214944849 is 9484494125.

It is a happy number.

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 1388903824 + 3826041025 = 37268^2 + 61855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5214944849 is a prime.

It is a super-2 number, since 2×52149448492 = 54391299556223265602, 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 = 5214944797 and 5214944806.

It is not an unprimeable number, because it can be changed into a prime (5214944149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3992414 + ... + 3993719.

It is an arithmetic number, because the mean of its divisors is an integer number (1305732909).

Almost surely, 25214944849 is an apocalyptic number.

It is an amenable number.

5214944849 is a deficient number, since it is larger than the sum of its proper divisors (7986787).

5214944849 is an equidigital number, since it uses as much as digits as its factorization.

5214944849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7986786.

The product of its digits is 1658880, while the sum is 50.

The square root of 5214944849 is about 72214.5750454851. The cubic root of 5214944849 is about 1734.1363427667.

The spelling of 5214944849 in words is "five billion, two hundred fourteen million, nine hundred forty-four thousand, eight hundred forty-nine".

Divisors: 1 653 7986133 5214944849