Base | Representation |
---|---|
bin | 10010101111011100… |
… | …101110001110001111 |
3 | 1220221102202012210020 |
4 | 102233130232032033 |
5 | 312203043130333 |
6 | 13124454313223 |
7 | 1311451113510 |
oct | 225734561617 |
9 | 56842665706 |
10 | 20123411343 |
11 | 8597160872 |
12 | 3a97358813 |
13 | 1b891274b9 |
14 | d8c84ca07 |
15 | 7cb9e73b3 |
hex | 4af72e38f |
20123411343 has 32 divisors (see below), whose sum is σ = 32560206336. Its totient is φ = 10791948288.
The previous prime is 20123411327. The next prime is 20123411437. The reversal of 20123411343 is 34311432102.
It is a happy number.
It is not a de Polignac number, because 20123411343 - 24 = 20123411327 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20123415343) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46180 + ... + 205862.
It is an arithmetic number, because the mean of its divisors is an integer number (1017506448).
Almost surely, 220123411343 is an apocalyptic number.
20123411343 is a deficient number, since it is larger than the sum of its proper divisors (12436794993).
20123411343 is a wasteful number, since it uses less digits than its factorization.
20123411343 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 160063.
The product of its (nonzero) digits is 1728, while the sum is 24.
Adding to 20123411343 its reverse (34311432102), we get a palindrome (54434843445).
The spelling of 20123411343 in words is "twenty billion, one hundred twenty-three million, four hundred eleven thousand, three hundred forty-three".
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