Base | Representation |
---|---|
bin | 1101101011100… |
… | …0110100101111 |
3 | 10222222012202111 |
4 | 3122320310233 |
5 | 104142131033 |
6 | 5405504451 |
7 | 1264503022 |
oct | 332706457 |
9 | 128865674 |
10 | 57380143 |
11 | 2a431607 |
12 | 17272127 |
13 | bb70662 |
14 | 78991b9 |
15 | 50867cd |
hex | 36b8d2f |
57380143 has 2 divisors, whose sum is σ = 57380144. Its totient is φ = 57380142.
The previous prime is 57380131. The next prime is 57380153. The reversal of 57380143 is 34108375.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 57380143 - 29 = 57379631 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (57380153) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28690071 + 28690072.
It is an arithmetic number, because the mean of its divisors is an integer number (28690072).
Almost surely, 257380143 is an apocalyptic number.
57380143 is a deficient number, since it is larger than the sum of its proper divisors (1).
57380143 is an equidigital number, since it uses as much as digits as its factorization.
57380143 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 10080, while the sum is 31.
The square root of 57380143 is about 7574.9681847517. The cubic root of 57380143 is about 385.7037625256.
The spelling of 57380143 in words is "fifty-seven million, three hundred eighty thousand, one hundred forty-three".
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