Base | Representation |
---|---|
bin | 111001100010000… |
… | …1101100110011001 |
3 | 11222112112202100220 |
4 | 1303010031212121 |
5 | 12423200442441 |
6 | 515320550253 |
7 | 65560562406 |
oct | 16304154631 |
9 | 4875482326 |
10 | 1930484121 |
11 | 900787325 |
12 | 45a622389 |
13 | 249c47cc7 |
14 | 1445612ad |
15 | b4730466 |
hex | 7310d999 |
1930484121 has 8 divisors (see below), whose sum is σ = 2576564544. Its totient is φ = 1285696560.
The previous prime is 1930484069. The next prime is 1930484161. The reversal of 1930484121 is 1214840391.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1930484121 - 27 = 1930483993 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1930484161) 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, 319725 + ... + 325706.
It is an arithmetic number, because the mean of its divisors is an integer number (322070568).
Almost surely, 21930484121 is an apocalyptic number.
It is an amenable number.
1930484121 is a deficient number, since it is larger than the sum of its proper divisors (646080423).
1930484121 is an equidigital number, since it uses as much as digits as its factorization.
1930484121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 646431.
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 1930484121 is about 43937.2748472183. The cubic root of 1930484121 is about 1245.1511611432.
The spelling of 1930484121 in words is "one billion, nine hundred thirty million, four hundred eighty-four thousand, one hundred twenty-one".
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