Base | Representation |
---|---|
bin | 11000011100000100… |
… | …00101110111000000 |
3 | 1020212101012212211121 |
4 | 30032002011313000 |
5 | 203332301044300 |
6 | 10005530122024 |
7 | 643063655314 |
oct | 141602056700 |
9 | 36771185747 |
10 | 13120331200 |
11 | 56230a3029 |
12 | 2661b80314 |
13 | 13112b35b2 |
14 | 8c672db44 |
15 | 51bcc081a |
hex | 30e085dc0 |
13120331200 has 84 divisors (see below), whose sum is σ = 32531179032. Its totient is φ = 5207987200.
The previous prime is 13120331197. The next prime is 13120331243. The reversal of 13120331200 is 213302131.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a congruent number.
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 178302 + ... + 240898.
Almost surely, 213120331200 is an apocalyptic number.
13120331200 is a gapful number since it is divisible by the number (10) 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 13120331200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16265589516).
13120331200 is an abundant number, since it is smaller than the sum of its proper divisors (19410847832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13120331200 is a wasteful number, since it uses less digits than its factorization.
13120331200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62750 (or 62735 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 13120331200 its reverse (213302131), we get a palindrome (13333633331).
The spelling of 13120331200 in words is "thirteen billion, one hundred twenty million, three hundred thirty-one thousand, two hundred".
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