Base | Representation |
---|---|
bin | 111000100010101010… |
… | …1101100111101111001 |
3 | 102121102010200002101211 |
4 | 1301011111230331321 |
5 | 3442133113321101 |
6 | 131440343243121 |
7 | 11525650245160 |
oct | 1610525547571 |
9 | 377363602354 |
10 | 121422401401 |
11 | 47549864374 |
12 | 1b6481494a1 |
13 | b5b0aaa2c2 |
14 | 5c3c20a3d7 |
15 | 3259cc2c51 |
hex | 1c4556cf79 |
121422401401 has 4 divisors (see below), whose sum is σ = 138768458752. Its totient is φ = 104076344052.
The previous prime is 121422401393. The next prime is 121422401413. The reversal of 121422401401 is 104104224121.
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 121422401401 - 23 = 121422401393 is a prime.
It is not an unprimeable number, because it can be changed into a prime (121422401461) 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, 8673028665 + ... + 8673028678.
It is an arithmetic number, because the mean of its divisors is an integer number (34692114688).
Almost surely, 2121422401401 is an apocalyptic number.
It is an amenable number.
121422401401 is a deficient number, since it is larger than the sum of its proper divisors (17346057351).
121422401401 is an equidigital number, since it uses as much as digits as its factorization.
121422401401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17346057350.
The product of its (nonzero) digits is 512, while the sum is 22.
Adding to 121422401401 its reverse (104104224121), we get a palindrome (225526625522).
The spelling of 121422401401 in words is "one hundred twenty-one billion, four hundred twenty-two million, four hundred one thousand, four hundred one".
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