Base | Representation |
---|---|
bin | 111111001101011… |
… | …1111000110001001 |
3 | 12110211001010200112 |
4 | 1332122333012021 |
5 | 13320434102101 |
6 | 550244244105 |
7 | 103363142246 |
oct | 17632770611 |
9 | 5424033615 |
10 | 2121003401 |
11 | 999284280 |
12 | 4b23a0635 |
13 | 27a562bca |
14 | 1619965cd |
15 | c63156bb |
hex | 7e6bf189 |
2121003401 has 4 divisors (see below), whose sum is σ = 2313821904. Its totient is φ = 1928184900.
The previous prime is 2121003371. The next prime is 2121003407. The reversal of 2121003401 is 1043001212.
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 2121003401 - 214 = 2120987017 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2121003407) 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 3 ways as a sum of consecutive naturals, for example, 96409235 + ... + 96409256.
It is an arithmetic number, because the mean of its divisors is an integer number (578455476).
Almost surely, 22121003401 is an apocalyptic number.
It is an amenable number.
2121003401 is a deficient number, since it is larger than the sum of its proper divisors (192818503).
2121003401 is a wasteful number, since it uses less digits than its factorization.
2121003401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 192818502.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 2121003401 is about 46054.3526824555. The cubic root of 2121003401 is about 1284.8342988101.
Adding to 2121003401 its reverse (1043001212), we get a palindrome (3164004613).
The spelling of 2121003401 in words is "two billion, one hundred twenty-one million, three thousand, four hundred one".
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