Base | Representation |
---|---|
bin | 110111111110010001… |
… | …1101100001011011101 |
3 | 102111021001000022021202 |
4 | 1233330203230023131 |
5 | 3432133020101141 |
6 | 131115243405245 |
7 | 11453462313323 |
oct | 1577443541335 |
9 | 374231008252 |
10 | 120201331421 |
11 | 46a82577426 |
12 | 1b367223825 |
13 | b447b196a2 |
14 | 5b63d93d13 |
15 | 31d79c449b |
hex | 1bfc8ec2dd |
120201331421 has 8 divisors (see below), whose sum is σ = 123886245984. Its totient is φ = 116539376400.
The previous prime is 120201331417. The next prime is 120201331451. The reversal of 120201331421 is 124133102021.
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 120201331421 - 22 = 120201331417 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 120201331393 and 120201331402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120201331451) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5729255 + ... + 5750196.
It is an arithmetic number, because the mean of its divisors is an integer number (15485780748).
Almost surely, 2120201331421 is an apocalyptic number.
It is an amenable number.
120201331421 is a deficient number, since it is larger than the sum of its proper divisors (3684914563).
120201331421 is a wasteful number, since it uses less digits than its factorization.
120201331421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11479771.
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 120201331421 its reverse (124133102021), we get a palindrome (244334433442).
The spelling of 120201331421 in words is "one hundred twenty billion, two hundred one million, three hundred thirty-one thousand, four hundred twenty-one".
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