Base | Representation |
---|---|
bin | 111000010110101111… |
… | …0101011001011101000 |
3 | 102120101020102200101102 |
4 | 1300231132223023220 |
5 | 3440323124201300 |
6 | 131332523340532 |
7 | 11513016610241 |
oct | 1605536531350 |
9 | 376336380342 |
10 | 121022100200 |
11 | 47363903131 |
12 | 1b556081748 |
13 | b548b918a1 |
14 | 5c00da7cc8 |
15 | 3234aa00d5 |
hex | 1c2d7ab2e8 |
121022100200 has 48 divisors (see below), whose sum is σ = 281992299180. Its totient is φ = 48302876160.
The previous prime is 121022100193. The next prime is 121022100203. The reversal of 121022100200 is 2001220121.
It is a happy number.
It can be written as a sum of positive squares in 6 ways, for example, as 67765461124 + 53256639076 = 260318^2 + 230774^2 .
It is not an unprimeable number, because it can be changed into a prime (121022100203) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570647 + ... + 753446.
Almost surely, 2121022100200 is an apocalyptic number.
121022100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
121022100200 is an abundant number, since it is smaller than the sum of its proper divisors (160970198980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121022100200 is a wasteful number, since it uses less digits than its factorization.
121022100200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1324566 (or 1324557 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 11.
Adding to 121022100200 its reverse (2001220121), we get a palindrome (123023320321).
The spelling of 121022100200 in words is "one hundred twenty-one billion, twenty-two million, one hundred thousand, two hundred".
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