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5487309779 = 71993939203
BaseRepresentation
bin1010001110001000…
…11011001111010011
3112011102100012220112
411013010123033103
542214222403104
62304300031535
7252660235460
oct50704331723
915142305815
105487309779
112366497066
1210918325ab
13695abc783
143a0ab2667
15221b1486e
hex14711b3d3

5487309779 has 8 divisors (see below), whose sum is σ = 6302726400. Its totient is φ = 4679771976.

The previous prime is 5487309769. The next prime is 5487309781. The reversal of 5487309779 is 9779037845.

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

It is a cyclic number.

It is not a de Polignac number, because 5487309779 - 28 = 5487309523 is a prime.

It is a super-2 number, since 2×54873097792 = 60221137221418057682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5487309739) 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, 1968209 + ... + 1970994.

It is an arithmetic number, because the mean of its divisors is an integer number (787840800).

Almost surely, 25487309779 is an apocalyptic number.

5487309779 is a deficient number, since it is larger than the sum of its proper divisors (815416621).

5487309779 is a wasteful number, since it uses less digits than its factorization.

5487309779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939409.

The product of its (nonzero) digits is 13335840, while the sum is 59.

The square root of 5487309779 is about 74076.3780094572. The cubic root of 5487309779 is about 1763.8155191363.

The spelling of 5487309779 in words is "five billion, four hundred eighty-seven million, three hundred nine thousand, seven hundred seventy-nine".

Divisors: 1 7 199 1393 3939203 27574421 783901397 5487309779