Base | Representation |
---|---|
bin | 11001000111000100… |
… | …11010100000000010 |
3 | 1021210112010011002220 |
4 | 30203202122200002 |
5 | 210102132012030 |
6 | 10105415151510 |
7 | 655034452011 |
oct | 144342324002 |
9 | 37715104086 |
10 | 13481125890 |
11 | 5798820461 |
12 | 2742975596 |
13 | 136ac78c8b |
14 | 91c60aa78 |
15 | 53d7dca10 |
hex | 32389a802 |
13481125890 has 32 divisors (see below), whose sum is σ = 33470383680. Its totient is φ = 3471002304.
The previous prime is 13481125873. The next prime is 13481125913. The reversal of 13481125890 is 9852118431.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7746904 + ... + 7748643.
It is an arithmetic number, because the mean of its divisors is an integer number (1045949490).
Almost surely, 213481125890 is an apocalyptic number.
13481125890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13481125890 is an abundant number, since it is smaller than the sum of its proper divisors (19989257790).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13481125890 is a wasteful number, since it uses less digits than its factorization.
13481125890 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15495586.
The product of its (nonzero) digits is 69120, while the sum is 42.
The spelling of 13481125890 in words is "thirteen billion, four hundred eighty-one million, one hundred twenty-five thousand, eight hundred ninety".
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