Base | Representation |
---|---|
bin | 1101101011100… |
… | …0110011111001 |
3 | 10222222012200111 |
4 | 3122320303321 |
5 | 104142130324 |
6 | 5405504321 |
7 | 1264502614 |
oct | 332706371 |
9 | 128865614 |
10 | 57380089 |
11 | 2a431568 |
12 | 172720a1 |
13 | bb70620 |
14 | 789917b |
15 | 5086794 |
hex | 36b8cf9 |
57380089 has 4 divisors (see below), whose sum is σ = 61793956. Its totient is φ = 52966224.
The previous prime is 57380087. The next prime is 57380093. The reversal of 57380089 is 98008375.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 3841600 + 53538489 = 1960^2 + 7317^2 .
It is a cyclic number.
It is not a de Polignac number, because 57380089 - 21 = 57380087 is a prime.
It is a super-2 number, since 2×573800892 = 6584949227295842, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (57380087) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206914 + ... + 2206939.
It is an arithmetic number, because the mean of its divisors is an integer number (15448489).
Almost surely, 257380089 is an apocalyptic number.
It is an amenable number.
57380089 is a deficient number, since it is larger than the sum of its proper divisors (4413867).
57380089 is a wasteful number, since it uses less digits than its factorization.
57380089 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4413866.
The product of its (nonzero) digits is 60480, while the sum is 40.
The square root of 57380089 is about 7574.9646203794. The cubic root of 57380089 is about 385.7036415313.
The spelling of 57380089 in words is "fifty-seven million, three hundred eighty thousand, eighty-nine".
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