Base | Representation |
---|---|
bin | 100111111100111000… |
… | …111001100010010000 |
3 | 11002201121011202121001 |
4 | 213330320321202100 |
5 | 1200323223323244 |
6 | 31412401511344 |
7 | 3046016363563 |
oct | 477470714220 |
9 | 132647152531 |
10 | 42897479824 |
11 | 17213566571 |
12 | 8392342554 |
13 | 4078450174 |
14 | 210d3284da |
15 | 11b10795d4 |
hex | 9fce39890 |
42897479824 has 30 divisors (see below), whose sum is σ = 87718525350. Its totient is φ = 20319856128.
The previous prime is 42897479773. The next prime is 42897479827.
42897479824 is nontrivially palindromic in base 10.
42897479824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 24037401600 + 18860078224 = 155040^2 + 137332^2 .
It is not an unprimeable number, because it can be changed into a prime (42897479827) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3707649 + ... + 3719200.
It is an arithmetic number, because the mean of its divisors is an integer number (2923950845).
Almost surely, 242897479824 is an apocalyptic number.
It is an amenable number.
42897479824 is an abundant number, since it is smaller than the sum of its proper divisors (44821045526).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42897479824 is a wasteful number, since it uses less digits than its factorization.
42897479824 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7426895 (or 7426870 counting only the distinct ones).
The product of its digits is 65028096, while the sum is 64.
The spelling of 42897479824 in words is "forty-two billion, eight hundred ninety-seven million, four hundred seventy-nine thousand, eight hundred twenty-four".
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