Search a number
-
+
10057321805 = 517118321433
BaseRepresentation
bin10010101110111011…
…01000110101001101
3221221220121212212012
421113131220311031
5131044133244210
64341551151005
7504141552626
oct112735506515
927856555765
1010057321805
1142a1106803
121b48215465
13c4383a3bb
146b5a04a4d
153dce32305
hex257768d4d

10057321805 has 8 divisors (see below), whose sum is σ = 12778714872. Its totient is φ = 7572571648.

The previous prime is 10057321801. The next prime is 10057321877. The reversal of 10057321805 is 50812375001.

It can be written as a sum of positive squares in 4 ways, for example, as 658794889 + 9398526916 = 25667^2 + 96946^2 .

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 10057321805 - 22 = 10057321801 is a prime.

It is a super-2 number, since 2×100573218052 (a number of 21 digits) contains 22 as substring.

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 (10057321801) 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 7 ways as a sum of consecutive naturals, for example, 59160632 + ... + 59160801.

It is an arithmetic number, because the mean of its divisors is an integer number (1597339359).

Almost surely, 210057321805 is an apocalyptic number.

It is an amenable number.

10057321805 is a deficient number, since it is larger than the sum of its proper divisors (2721393067).

10057321805 is a wasteful number, since it uses less digits than its factorization.

10057321805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118321455.

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 10057321805 its reverse (50812375001), we get a palindrome (60869696806).

The spelling of 10057321805 in words is "ten billion, fifty-seven million, three hundred twenty-one thousand, eight hundred five".

Divisors: 1 5 17 85 118321433 591607165 2011464361 10057321805