Base | Representation |
---|---|
bin | 10010101111111110… |
… | …101011000001010001 |
3 | 1220222001111100222122 |
4 | 102233332223001101 |
5 | 312212332423441 |
6 | 13125413144025 |
7 | 1311616551416 |
oct | 225776530121 |
9 | 56861440878 |
10 | 20132311121 |
11 | 85a118a35a |
12 | 3a9a32b015 |
13 | 1b8ac22340 |
14 | d8dac810d |
15 | 7cc6a434b |
hex | 4affab051 |
20132311121 has 8 divisors (see below), whose sum is σ = 22380336384. Its totient is φ = 17984198160.
The previous prime is 20132311097. The next prime is 20132311153. The reversal of 20132311121 is 12111323102.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20132311121 - 230 = 19058569297 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 20132311121.
It is not an unprimeable number, because it can be changed into a prime (20132311321) 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 7 ways as a sum of consecutive naturals, for example, 24977651 + ... + 24978456.
It is an arithmetic number, because the mean of its divisors is an integer number (2797542048).
Almost surely, 220132311121 is an apocalyptic number.
It is an amenable number.
20132311121 is a deficient number, since it is larger than the sum of its proper divisors (2248025263).
20132311121 is a wasteful number, since it uses less digits than its factorization.
20132311121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49956151.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 20132311121 its reverse (12111323102), we get a palindrome (32243634223).
The spelling of 20132311121 in words is "twenty billion, one hundred thirty-two million, three hundred eleven thousand, one hundred twenty-one".
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