Base | Representation |
---|---|
bin | 111000100011001110… |
… | …1011101000000100001 |
3 | 102121110110001200111110 |
4 | 1301012131131000201 |
5 | 3442202422213101 |
6 | 131442254333533 |
7 | 11526266154000 |
oct | 1610635350041 |
9 | 377413050443 |
10 | 121441210401 |
11 | 475594408a5 |
12 | 1b6524ba2a9 |
13 | b5b49645a4 |
14 | 5c40904c37 |
15 | 325b78acd6 |
hex | 1c4675d021 |
121441210401 has 64 divisors (see below), whose sum is σ = 190874304000. Its totient is φ = 68646187008.
The previous prime is 121441210367. The next prime is 121441210439. The reversal of 121441210401 is 104012144121.
It is not a de Polignac number, because 121441210401 - 213 = 121441202209 is a prime.
It is a super-3 number, since 3×1214412104013 (a number of 34 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (121441211401) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113602095 + ... + 113603163.
It is an arithmetic number, because the mean of its divisors is an integer number (2982411000).
Almost surely, 2121441210401 is an apocalyptic number.
It is an amenable number.
121441210401 is a deficient number, since it is larger than the sum of its proper divisors (69433093599).
121441210401 is a wasteful number, since it uses less digits than its factorization.
121441210401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2183 (or 2169 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 21.
Adding to 121441210401 its reverse (104012144121), we get a palindrome (225453354522).
The spelling of 121441210401 in words is "one hundred twenty-one billion, four hundred forty-one million, two hundred ten thousand, four hundred one".
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