Base | Representation |
---|---|
bin | 111101000110000110… |
… | …0100110100111100110 |
3 | 110112122122002010101100 |
4 | 1322030030212213212 |
5 | 4122144442224110 |
6 | 140134543340530 |
7 | 12323200141632 |
oct | 1721414464746 |
9 | 415578063340 |
10 | 131201133030 |
11 | 5070768a160 |
12 | 21516bb1746 |
13 | c4ab9a4936 |
14 | 64c8c11dc2 |
15 | 362d524bc0 |
hex | 1e8c3269e6 |
131201133030 has 48 divisors (see below), whose sum is σ = 372134125584. Its totient is φ = 31806335040.
The previous prime is 131201132999. The next prime is 131201133031. The reversal of 131201133030 is 30331102131.
It is a happy number.
131201133030 is a `hidden beast` number, since 131 + 201 + 1 + 330 + 3 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 131201132994 and 131201133012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131201133031) 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 23 ways as a sum of consecutive naturals, for example, 66262209 + ... + 66264188.
It is an arithmetic number, because the mean of its divisors is an integer number (7752794283).
Almost surely, 2131201133030 is an apocalyptic number.
131201133030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131201133030 is an abundant number, since it is smaller than the sum of its proper divisors (240932992554).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131201133030 is a wasteful number, since it uses less digits than its factorization.
131201133030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132526421 (or 132526418 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 131201133030 its reverse (30331102131), we get a palindrome (161532235161).
The spelling of 131201133030 in words is "one hundred thirty-one billion, two hundred one million, one hundred thirty-three thousand, thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •