Base | Representation |
---|---|
bin | 10010101111011011… |
… | …101010010011010101 |
3 | 1220221102020002011110 |
4 | 102233123222103111 |
5 | 312203010230031 |
6 | 13124444325233 |
7 | 1311445544436 |
oct | 225733522325 |
9 | 56842202143 |
10 | 20123133141 |
11 | 8596a90851 |
12 | 3a97243819 |
13 | 1b8905a997 |
14 | d8c7b948d |
15 | 7cb98ec46 |
hex | 4af6ea4d5 |
20123133141 has 4 divisors (see below), whose sum is σ = 26830844192. Its totient is φ = 13415422092.
The previous prime is 20123133133. The next prime is 20123133161. The reversal of 20123133141 is 14133132102.
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 not a de Polignac number, because 20123133141 - 23 = 20123133133 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20123133161) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3353855521 + ... + 3353855526.
It is an arithmetic number, because the mean of its divisors is an integer number (6707711048).
Almost surely, 220123133141 is an apocalyptic number.
It is an amenable number.
20123133141 is a deficient number, since it is larger than the sum of its proper divisors (6707711051).
20123133141 is an equidigital number, since it uses as much as digits as its factorization.
20123133141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6707711050.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 20123133141 its reverse (14133132102), we get a palindrome (34256265243).
The spelling of 20123133141 in words is "twenty billion, one hundred twenty-three million, one hundred thirty-three thousand, one hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •