Base | Representation |
---|---|
bin | 1110011011010… |
… | …01111001101000 |
3 | 22102201110020112 |
4 | 13031221321220 |
5 | 221440120013 |
6 | 20001513452 |
7 | 2666440004 |
oct | 715517150 |
9 | 272643215 |
10 | 121020008 |
11 | 6234913a |
12 | 34642888 |
13 | 1c0c3295 |
14 | 12103704 |
15 | a957ba8 |
hex | 7369e68 |
121020008 has 32 divisors (see below), whose sum is σ = 240926400. Its totient is φ = 56792832.
The previous prime is 121019999. The next prime is 121020019. The reversal of 121020008 is 800020121.
It is a junction number, because it is equal to n+sod(n) for n = 121019974 and 121020001.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58691 + ... + 60717.
It is an arithmetic number, because the mean of its divisors is an integer number (7528950).
Almost surely, 2121020008 is an apocalyptic number.
It is an amenable number.
121020008 is a deficient number, since it is larger than the sum of its proper divisors (119906392).
121020008 is a wasteful number, since it uses less digits than its factorization.
121020008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2489 (or 2485 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 14.
The square root of 121020008 is about 11000.9094169528. The cubic root of 121020008 is about 494.6360048933.
Adding to 121020008 its reverse (800020121), we get a palindrome (921040129).
The spelling of 121020008 in words is "one hundred twenty-one million, twenty thousand, eight".
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