Search a number
-
+
13256107467123 = 31512139212
BaseRepresentation
bin1100000011100110110110…
…0100111010000101110011
31201221021022220212212020210
43000321231210322011303
53214142002002421443
644105434404235203
72535502462221633
oct300715544720563
951837286785223
1013256107467123
11425097a096434
1215a115769bb03
1375207916c581
1433b855a1c6c3
1517ec4d765c33
hexc0e6d93a173

13256107467123 has 18 divisors (see below), whose sum is σ = 17793915061356. Its totient is φ = 8778248496000.

The previous prime is 13256107467121. The next prime is 13256107467157. The reversal of 13256107467123 is 32176470165231.

13256107467123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13256107467123 - 21 = 13256107467121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13256107467121) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 952231203 + ... + 952245123.

It is an arithmetic number, because the mean of its divisors is an integer number (988550836742).

Almost surely, 213256107467123 is an apocalyptic number.

13256107467123 is a deficient number, since it is larger than the sum of its proper divisors (4537807594233).

13256107467123 is an frugal number, since it uses more digits than its factorization.

13256107467123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28147 (or 14075 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

Multiplying 13256107467123 by its sum of digits (48), we get a square (636293158421904 = 252248522).

The spelling of 13256107467123 in words is "thirteen trillion, two hundred fifty-six billion, one hundred seven million, four hundred sixty-seven thousand, one hundred twenty-three".

Divisors: 1 3 151 453 13921 22801 41763 68403 2102071 6306213 193794241 317412721 581382723 952238163 29262930391 87788791173 4418702489041 13256107467123