Base | Representation |
---|---|
bin | 1101101110000… |
… | …1010010011111 |
3 | 11000021122010011 |
4 | 3123201102133 |
5 | 104212432022 |
6 | 5413224051 |
7 | 1266063160 |
oct | 333412237 |
9 | 130248104 |
10 | 57545887 |
11 | 2a535093 |
12 | 17332027 |
13 | bbcac29 |
14 | 78dd767 |
15 | 50ba977 |
hex | 36e149f |
57545887 has 8 divisors (see below), whose sum is σ = 66506400. Its totient is φ = 48770304.
The previous prime is 57545881. The next prime is 57545921. The reversal of 57545887 is 78854575.
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 57545887 - 27 = 57545759 is a prime.
It is a super-2 number, since 2×575458872 = 6623058221233538, 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 57545887.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57545881) 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, 45562 + ... + 46807.
It is an arithmetic number, because the mean of its divisors is an integer number (8313300).
Almost surely, 257545887 is an apocalyptic number.
57545887 is a deficient number, since it is larger than the sum of its proper divisors (8960513).
57545887 is an equidigital number, since it uses as much as digits as its factorization.
57545887 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92465.
The product of its digits is 1568000, while the sum is 49.
The square root of 57545887 is about 7585.9005398173. The cubic root of 57545887 is about 386.0747772300.
The spelling of 57545887 in words is "fifty-seven million, five hundred forty-five thousand, eight hundred eighty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.108 sec. • engine limits •