Base | Representation |
---|---|
bin | 111000011101001111… |
… | …1011101011111110101 |
3 | 102120221110012222021022 |
4 | 1300322133131133311 |
5 | 3441300021110401 |
6 | 131410322430525 |
7 | 11521310324246 |
oct | 1607237353765 |
9 | 376843188238 |
10 | 121240410101 |
11 | 47466061638 |
12 | 1b5b7202445 |
13 | b582189c45 |
14 | 5c21d94ccd |
15 | 3248d2471b |
hex | 1c3a7dd7f5 |
121240410101 has 8 divisors (see below), whose sum is σ = 125156872704. Its totient is φ = 117324290160.
The previous prime is 121240410097. The next prime is 121240410107. The reversal of 121240410101 is 101014042121.
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 121240410101 - 22 = 121240410097 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 121240410101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121240410107) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768851 + ... + 913023.
It is an arithmetic number, because the mean of its divisors is an integer number (15644609088).
Almost surely, 2121240410101 is an apocalyptic number.
It is an amenable number.
121240410101 is a deficient number, since it is larger than the sum of its proper divisors (3916462603).
121240410101 is a wasteful number, since it uses less digits than its factorization.
121240410101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 171331.
The product of its (nonzero) digits is 64, while the sum is 17.
Adding to 121240410101 its reverse (101014042121), we get a palindrome (222254452222).
The spelling of 121240410101 in words is "one hundred twenty-one billion, two hundred forty million, four hundred ten thousand, one hundred one".
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