Base | Representation |
---|---|
bin | 111001100001100… |
… | …1001001101111111 |
3 | 11222112000112011012 |
4 | 1303003021031333 |
5 | 12423113012111 |
6 | 515310545435 |
7 | 65555315000 |
oct | 16303111577 |
9 | 4875015135 |
10 | 1930204031 |
11 | 900605948 |
12 | 45a50827b |
13 | 249b7a682 |
14 | 1444cb1a7 |
15 | b46c748b |
hex | 730c937f |
1930204031 has 16 divisors (see below), whose sum is σ = 2273294400. Its totient is φ = 1638050400.
The previous prime is 1930204009. The next prime is 1930204033. The reversal of 1930204031 is 1304020391.
It is not a de Polignac number, because 1930204031 - 26 = 1930203967 is a prime.
It is a super-2 number, since 2×19302040312 = 7451375202577297922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1930203988 and 1930204006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1930204033) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6785 + ... + 62501.
It is an arithmetic number, because the mean of its divisors is an integer number (142080900).
Almost surely, 21930204031 is an apocalyptic number.
1930204031 is a deficient number, since it is larger than the sum of its proper divisors (343090369).
1930204031 is an equidigital number, since it uses as much as digits as its factorization.
1930204031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55839 (or 55825 counting only the distinct ones).
The product of its (nonzero) digits is 648, while the sum is 23.
The square root of 1930204031 is about 43934.0873468427. The cubic root of 1930204031 is about 1245.0909394173.
The spelling of 1930204031 in words is "one billion, nine hundred thirty million, two hundred four thousand, thirty-one".
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