Search a number
-
+
9048556805 = 51809711361
BaseRepresentation
bin10000110110101011…
…00000010100000101
3212100121110022102112
420123111200110011
5122012412304210
64053513550405
7440142315041
oct103325402405
925317408375
109048556805
113923746722
121906415405
13b12851832
1461ba55021
1537e5bdd05
hex21b560505

9048556805 has 4 divisors (see below), whose sum is σ = 10858268172. Its totient is φ = 7238845440.

The previous prime is 9048556763. The next prime is 9048556807. The reversal of 9048556805 is 5086558409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5086558409 = 47108224647.

It can be written as a sum of positive squares in 2 ways, for example, as 6412966561 + 2635590244 = 80081^2 + 51338^2 .

It is not a de Polignac number, because 9048556805 - 28 = 9048556549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9048556807) 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 3 ways as a sum of consecutive naturals, for example, 904855676 + ... + 904855685.

It is an arithmetic number, because the mean of its divisors is an integer number (2714567043).

Almost surely, 29048556805 is an apocalyptic number.

It is an amenable number.

9048556805 is a deficient number, since it is larger than the sum of its proper divisors (1809711367).

9048556805 is a wasteful number, since it uses less digits than its factorization.

9048556805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809711366.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The square root of 9048556805 is about 95123.9023852575. The cubic root of 9048556805 is about 2083.8179387798.

The spelling of 9048556805 in words is "nine billion, forty-eight million, five hundred fifty-six thousand, eight hundred five".

Divisors: 1 5 1809711361 9048556805