Base | Representation |
---|---|
bin | 100111111011111101… |
… | …110110100000110101 |
3 | 11002200112001100120101 |
4 | 213323331312200311 |
5 | 1200310243012244 |
6 | 31411050034101 |
7 | 3045440664634 |
oct | 477375664065 |
9 | 132615040511 |
10 | 42882000949 |
11 | 17205854007 |
12 | 8389118931 |
13 | 4075190878 |
14 | 210b25951b |
15 | 11aea1d0d4 |
hex | 9fbf76835 |
42882000949 has 4 divisors (see below), whose sum is σ = 42882459340. Its totient is φ = 42881542560.
The previous prime is 42882000947. The next prime is 42882000971. The reversal of 42882000949 is 94900028824.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in 2 ways, for example, as 18070080625 + 24811920324 = 134425^2 + 157518^2 .
It is a cyclic number.
It is not a de Polignac number, because 42882000949 - 21 = 42882000947 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 42882000899 and 42882000908.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42882000947) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32742 + ... + 294679.
It is an arithmetic number, because the mean of its divisors is an integer number (10720614835).
Almost surely, 242882000949 is an apocalyptic number.
42882000949 is the 130969-th heptagonal number.
It is an amenable number.
42882000949 is a deficient number, since it is larger than the sum of its proper divisors (458391).
42882000949 is a wasteful number, since it uses less digits than its factorization.
42882000949 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 458390.
The product of its (nonzero) digits is 331776, while the sum is 46.
The spelling of 42882000949 in words is "forty-two billion, eight hundred eighty-two million, nine hundred forty-nine", and thus it is an aban number.
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