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5105439989 = 13521753793
BaseRepresentation
bin1001100000100111…
…01101010011110101
3111011210210020000222
410300103231103311
540423443034424
62202335144125
7240342344456
oct46023552365
914153706028
105105439989
11218a9846a1
12ba5975045
13634958510
143660ab12d
151ed332e5e
hex1304ed4f5

5105439989 has 8 divisors (see below), whose sum is σ = 5508726552. Its totient is φ = 4703662080.

The previous prime is 5105439959. The next prime is 5105440027. The reversal of 5105439989 is 9899345015.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 407434225 + 4698005764 = 20185^2 + 68542^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5105439989 - 28 = 5105439733 is a prime.

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 5105439989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5105439919) 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 7 ways as a sum of consecutive naturals, for example, 370124 + ... + 383669.

It is an arithmetic number, because the mean of its divisors is an integer number (688590819).

Almost surely, 25105439989 is an apocalyptic number.

It is an amenable number.

5105439989 is a deficient number, since it is larger than the sum of its proper divisors (403286563).

5105439989 is a wasteful number, since it uses less digits than its factorization.

5105439989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754327.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The square root of 5105439989 is about 71452.3616754548. The cubic root of 5105439989 is about 1721.9124200106.

The spelling of 5105439989 in words is "five billion, one hundred five million, four hundred thirty-nine thousand, nine hundred eighty-nine".

Divisors: 1 13 521 6773 753793 9799309 392726153 5105439989