Base | Representation |
---|---|
bin | 11001000010110011… |
… | …00011101111011100 |
3 | 1021201000121110122200 |
4 | 30201121203233130 |
5 | 210013441000022 |
6 | 10102054211500 |
7 | 654120511425 |
oct | 144131435734 |
9 | 37630543580 |
10 | 13445250012 |
11 | 577a547377 |
12 | 2732953b90 |
13 | 13636c764c |
14 | 91794c64c |
15 | 53a5a2bac |
hex | 321663bdc |
13445250012 has 72 divisors (see below), whose sum is σ = 34428576000. Its totient is φ = 4423572000.
The previous prime is 13445249981. The next prime is 13445250017. The reversal of 13445250012 is 21005254431.
13445250012 is a `hidden beast` number, since 134 + 4 + 525 + 0 + 0 + 1 + 2 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13445250017) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5971887 + ... + 5974137.
Almost surely, 213445250012 is an apocalyptic number.
13445250012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13445250012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17214288000).
13445250012 is an abundant number, since it is smaller than the sum of its proper divisors (20983325988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13445250012 is a wasteful number, since it uses less digits than its factorization.
13445250012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4343 (or 4338 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 27.
The spelling of 13445250012 in words is "thirteen billion, four hundred forty-five million, two hundred fifty thousand, twelve".
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