Base | Representation |
---|---|
bin | 111010010100000… |
… | …110010000100001 |
3 | 2112011221011211121 |
4 | 322110012100201 |
5 | 4000424101131 |
6 | 241025212241 |
7 | 33146545510 |
oct | 7224062041 |
9 | 2464834747 |
10 | 978347041 |
11 | 462284681 |
12 | 233791081 |
13 | 1278c8599 |
14 | 93d12677 |
15 | 5ad55911 |
hex | 3a506421 |
978347041 has 4 divisors (see below), whose sum is σ = 1118110912. Its totient is φ = 838583172.
The previous prime is 978347017. The next prime is 978347077. The reversal of 978347041 is 140743879.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140743879 = 317 ⋅443987.
It is not a de Polignac number, because 978347041 - 25 = 978347009 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (978345041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69881925 + ... + 69881938.
It is an arithmetic number, because the mean of its divisors is an integer number (279527728).
Almost surely, 2978347041 is an apocalyptic number.
It is an amenable number.
978347041 is a deficient number, since it is larger than the sum of its proper divisors (139763871).
978347041 is a wasteful number, since it uses less digits than its factorization.
978347041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 139763870.
The product of its (nonzero) digits is 169344, while the sum is 43.
The square root of 978347041 is about 31278.5396238379. The cubic root of 978347041 is about 992.7296166261.
The spelling of 978347041 in words is "nine hundred seventy-eight million, three hundred forty-seven thousand, forty-one".
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