Base | Representation |
---|---|
bin | 1100110000010… |
… | …0010100101001 |
3 | 10201122211110022 |
4 | 3030010110221 |
5 | 102143320311 |
6 | 5150330225 |
7 | 1216462223 |
oct | 314042451 |
9 | 121584408 |
10 | 53495081 |
11 | 28218712 |
12 | 15ab9975 |
13 | b1101c3 |
14 | 7167413 |
15 | 4a6a5db |
hex | 3304529 |
53495081 has 8 divisors (see below), whose sum is σ = 55296840. Its totient is φ = 51712128.
The previous prime is 53495063. The next prime is 53495137. The reversal of 53495081 is 18059435.
It can be written as a sum of positive squares in 4 ways, for example, as 5331481 + 48163600 = 2309^2 + 6940^2 .
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 53495081 - 26 = 53495017 is a prime.
It is a super-2 number, since 2×534950812 = 5723447382393122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (53495381) 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, 1205 + ... + 10413.
It is an arithmetic number, because the mean of its divisors is an integer number (6912105).
Almost surely, 253495081 is an apocalyptic number.
It is an amenable number.
53495081 is a deficient number, since it is larger than the sum of its proper divisors (1801759).
53495081 is a wasteful number, since it uses less digits than its factorization.
53495081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9403.
The product of its (nonzero) digits is 21600, while the sum is 35.
The square root of 53495081 is about 7314.0331555169. The cubic root of 53495081 is about 376.7945534716.
The spelling of 53495081 in words is "fifty-three million, four hundred ninety-five thousand, eighty-one".
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