Base | Representation |
---|---|
bin | 1101101001000… |
… | …0111101001001 |
3 | 10222122220202021 |
4 | 3122100331021 |
5 | 104121414331 |
6 | 5402204441 |
7 | 1263222643 |
oct | 332207511 |
9 | 128586667 |
10 | 57216841 |
11 | 2a32a950 |
12 | 171b3721 |
13 | bb14226 |
14 | 7855893 |
15 | 5053211 |
hex | 3690f49 |
57216841 has 16 divisors (see below), whose sum is σ = 64388736. Its totient is φ = 50400000.
The previous prime is 57216829. The next prime is 57216851. The reversal of 57216841 is 14861275.
57216841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 57216841 - 213 = 57208649 is a prime.
It is a Duffinian number.
57216841 is a Rhonda number in base 10.
Its product of digits (13440) is a multiple of the sum of its prime divisors (1344).
It is a junction number, because it is equal to n+sod(n) for n = 57216797 and 57216806.
It is not an unprimeable number, because it can be changed into a prime (57216811) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47041 + ... + 48241.
It is an arithmetic number, because the mean of its divisors is an integer number (4024296).
Almost surely, 257216841 is an apocalyptic number.
It is an amenable number.
57216841 is a deficient number, since it is larger than the sum of its proper divisors (7171895).
57216841 is a wasteful number, since it uses less digits than its factorization.
57216841 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1344.
The product of its digits is 13440, while the sum is 34.
The square root of 57216841 is about 7564.1814494365. The cubic root of 57216841 is about 385.3375147879.
The spelling of 57216841 in words is "fifty-seven million, two hundred sixteen thousand, eight hundred forty-one".
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