Base | Representation |
---|---|
bin | 111000010110111111… |
… | …0011111110010011101 |
3 | 102120101211010111101012 |
4 | 1300231332133302131 |
5 | 3440332243122031 |
6 | 131333422225005 |
7 | 11513150532620 |
oct | 1605576376235 |
9 | 376354114335 |
10 | 121030442141 |
11 | 473685905a4 |
12 | 1b558a25165 |
13 | b54a82284b |
14 | 5c02139db7 |
15 | 323569bb2b |
hex | 1c2df9fc9d |
121030442141 has 16 divisors (see below), whose sum is σ = 151181429760. Its totient is φ = 94488387840.
The previous prime is 121030442131. The next prime is 121030442153. The reversal of 121030442141 is 141244030121.
It is not a de Polignac number, because 121030442141 - 234 = 103850572957 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121030442131) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16400546 + ... + 16407923.
It is an arithmetic number, because the mean of its divisors is an integer number (9448839360).
Almost surely, 2121030442141 is an apocalyptic number.
It is an amenable number.
121030442141 is a deficient number, since it is larger than the sum of its proper divisors (30150987619).
121030442141 is a wasteful number, since it uses less digits than its factorization.
121030442141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32808524.
The product of its (nonzero) digits is 768, while the sum is 23.
Adding to 121030442141 its reverse (141244030121), we get a palindrome (262274472262).
The spelling of 121030442141 in words is "one hundred twenty-one billion, thirty million, four hundred forty-two thousand, one hundred forty-one".
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