Base | Representation |
---|---|
bin | 1101101100001… |
… | …0001010010011 |
3 | 11000001011012221 |
4 | 3123002022103 |
5 | 104144342022 |
6 | 5410401511 |
7 | 1265022355 |
oct | 333021223 |
9 | 130034187 |
10 | 57418387 |
11 | 2a458314 |
12 | 17290297 |
13 | bb84ba0 |
14 | 78a90d5 |
15 | 5092cc7 |
hex | 36c2293 |
57418387 has 8 divisors (see below), whose sum is σ = 62884080. Its totient is φ = 52102560.
The previous prime is 57418381. The next prime is 57418391. The reversal of 57418387 is 78381475.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 57418387 - 23 = 57418379 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (57418381) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36664 + ... + 38197.
It is an arithmetic number, because the mean of its divisors is an integer number (7860510).
Almost surely, 257418387 is an apocalyptic number.
57418387 is a deficient number, since it is larger than the sum of its proper divisors (5465693).
57418387 is a wasteful number, since it uses less digits than its factorization.
57418387 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74933.
The product of its digits is 188160, while the sum is 43.
The square root of 57418387 is about 7577.4921313057. The cubic root of 57418387 is about 385.7894343160.
The spelling of 57418387 in words is "fifty-seven million, four hundred eighteen thousand, three hundred eighty-seven".
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