Base | Representation |
---|---|
bin | 1101110001000… |
… | …0110100100101 |
3 | 11000122112012001 |
4 | 3130100310211 |
5 | 104240144311 |
6 | 5421325301 |
7 | 1300533613 |
oct | 334206445 |
9 | 130575161 |
10 | 57740581 |
11 | 2a658398 |
12 | 17406831 |
13 | bc68732 |
14 | 79506b3 |
15 | 51084c1 |
hex | 3710d25 |
57740581 has 8 divisors (see below), whose sum is σ = 59201280. Its totient is φ = 56289648.
The previous prime is 57740549. The next prime is 57740593. The reversal of 57740581 is 18504775.
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 57740581 - 25 = 57740549 is a prime.
It is a super-2 number, since 2×577405812 = 6667949388435122, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 57740581.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57740531) 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, 10360 + ... + 14926.
It is an arithmetic number, because the mean of its divisors is an integer number (7400160).
Almost surely, 257740581 is an apocalyptic number.
It is an amenable number.
57740581 is a deficient number, since it is larger than the sum of its proper divisors (1460699).
57740581 is a wasteful number, since it uses less digits than its factorization.
57740581 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4883.
The product of its (nonzero) digits is 39200, while the sum is 37.
The square root of 57740581 is about 7598.7223268126. The cubic root of 57740581 is about 386.5096871531.
The spelling of 57740581 in words is "fifty-seven million, seven hundred forty thousand, five hundred eighty-one".
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