Base | Representation |
---|---|
bin | 111011011000000… |
… | …0100100110001110 |
3 | 12010211212222221220 |
4 | 1312300010212032 |
5 | 13040013010410 |
6 | 525410104210 |
7 | 100241245245 |
oct | 16660044616 |
9 | 5124788856 |
10 | 1992313230 |
11 | 932677466 |
12 | 47727b066 |
13 | 2599b568b |
14 | 14c85795c |
15 | b9d95070 |
hex | 76c0498e |
1992313230 has 16 divisors (see below), whose sum is σ = 4781551824. Its totient is φ = 531283520.
The previous prime is 1992313217. The next prime is 1992313231. The reversal of 1992313230 is 323132991.
It is a junction number, because it is equal to n+sod(n) for n = 1992313191 and 1992313200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1992313231) 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, 33205191 + ... + 33205250.
It is an arithmetic number, because the mean of its divisors is an integer number (298846989).
Almost surely, 21992313230 is an apocalyptic number.
1992313230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1992313230 is an abundant number, since it is smaller than the sum of its proper divisors (2789238594).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1992313230 is a wasteful number, since it uses less digits than its factorization.
1992313230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 66410451.
The product of its (nonzero) digits is 8748, while the sum is 33.
The square root of 1992313230 is about 44635.3361138908. The cubic root of 1992313230 is about 1258.3048570178.
It can be divided in two parts, 19923 and 13230, that added together give a triangular number (33153 = T257).
The spelling of 1992313230 in words is "one billion, nine hundred ninety-two million, three hundred thirteen thousand, two hundred thirty".
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