Search a number
-
+
82055555555 = 531541978541
BaseRepresentation
bin100110001101011100…
…1000110100111100011
321211210121000010010012
41030122321012213203
52321022210234210
6101410143155135
75633261466641
oct1143271064743
9254717003105
1082055555555
1131888249426
1213aa02a5aab
137978c6118c
143d85b76191
152203ba7305
hex131ae469e3

82055555555 has 16 divisors (see below), whose sum is σ = 101830994688. Its totient is φ = 63409392000.

The previous prime is 82055555551. The next prime is 82055555563. The reversal of 82055555555 is 55555555028.

It is not a de Polignac number, because 82055555555 - 22 = 82055555551 is a prime.

It is a super-2 number, since 2×820555555552 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

82055555555 is a modest number, since divided by 555555 gives 82055 as remainder.

It is not an unprimeable number, because it can be changed into a prime (82055555551) 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 15 ways as a sum of consecutive naturals, for example, 405416 + ... + 573125.

It is an arithmetic number, because the mean of its divisors is an integer number (6364437168).

Almost surely, 282055555555 is an apocalyptic number.

82055555555 is a deficient number, since it is larger than the sum of its proper divisors (19775439133).

82055555555 is a wasteful number, since it uses less digits than its factorization.

82055555555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979118.

The product of its (nonzero) digits is 6250000, while the sum is 50.

The spelling of 82055555555 in words is "eighty-two billion, fifty-five million, five hundred fifty-five thousand, five hundred fifty-five".

Divisors: 1 5 31 155 541 2705 16771 83855 978541 4892705 30334771 151673855 529390681 2646953405 16411111111 82055555555