Base | Representation |
---|---|
bin | 1101100110001… |
… | …1101011110101 |
3 | 10222022111101120 |
4 | 3121203223311 |
5 | 104100001123 |
6 | 5354214153 |
7 | 1261521225 |
oct | 331435365 |
9 | 128274346 |
10 | 57031413 |
11 | 2a2135aa |
12 | 17124359 |
13 | ba7a9ca |
14 | 7808085 |
15 | 50182e3 |
hex | 3663af5 |
57031413 has 16 divisors (see below), whose sum is σ = 83114496. Its totient is φ = 34629120.
The previous prime is 57031411. The next prime is 57031453. The reversal of 57031413 is 31413075.
It is not a de Polignac number, because 57031413 - 21 = 57031411 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57031411) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16456 + ... + 19617.
It is an arithmetic number, because the mean of its divisors is an integer number (5194656).
Almost surely, 257031413 is an apocalyptic number.
It is an amenable number.
57031413 is a deficient number, since it is larger than the sum of its proper divisors (26083083).
57031413 is a wasteful number, since it uses less digits than its factorization.
57031413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36124.
The product of its (nonzero) digits is 1260, while the sum is 24.
The square root of 57031413 is about 7551.9145254697. The cubic root of 57031413 is about 384.9207977853.
Adding to 57031413 its reverse (31413075), we get a palindrome (88444488).
The spelling of 57031413 in words is "fifty-seven million, thirty-one thousand, four hundred thirteen".
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