Base | Representation |
---|---|
bin | 111101000000101100… |
… | …1110000110001001101 |
3 | 110112012000022021222120 |
4 | 1322001121300301031 |
5 | 4121312112024401 |
6 | 140104554003153 |
7 | 12315540622536 |
oct | 1720131606115 |
9 | 415160267876 |
10 | 131020033101 |
11 | 506244360a1 |
12 | 214864164b9 |
13 | c480307209 |
14 | 64acb4d68d |
15 | 361c6a0836 |
hex | 1e81670c4d |
131020033101 has 4 divisors (see below), whose sum is σ = 174693377472. Its totient is φ = 87346688732.
The previous prime is 131020033099. The next prime is 131020033139. The reversal of 131020033101 is 101330020131.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 131020033101 - 21 = 131020033099 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131020033181) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21836672181 + ... + 21836672186.
It is an arithmetic number, because the mean of its divisors is an integer number (43673344368).
Almost surely, 2131020033101 is an apocalyptic number.
It is an amenable number.
131020033101 is a deficient number, since it is larger than the sum of its proper divisors (43673344371).
131020033101 is an equidigital number, since it uses as much as digits as its factorization.
131020033101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43673344370.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 131020033101 its reverse (101330020131), we get a palindrome (232350053232).
The spelling of 131020033101 in words is "one hundred thirty-one billion, twenty million, thirty-three thousand, one hundred one".
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