Base | Representation |
---|---|
bin | 1100100001010… |
… | …1000011000000 |
3 | 10122211001001022 |
4 | 3020111003000 |
5 | 101420440013 |
6 | 5113325012 |
7 | 1205240660 |
oct | 310250300 |
9 | 118731038 |
10 | 52515008 |
11 | 27709337 |
12 | 15706768 |
13 | ab59090 |
14 | 6d901a0 |
15 | 4925008 |
hex | 32150c0 |
52515008 has 112 divisors (see below), whose sum is σ = 131088384. Its totient is φ = 20321280.
The previous prime is 52515007. The next prime is 52515011. The reversal of 52515008 is 80051525.
It is a tau number, because it is divible by the number of its divisors (112).
It is a Harshad number since it is a multiple of its sum of digits (26).
It is not an unprimeable number, because it can be changed into a prime (52515007) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413441 + ... + 413567.
It is an arithmetic number, because the mean of its divisors is an integer number (1170432).
Almost surely, 252515008 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 52515008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65544192).
52515008 is an abundant number, since it is smaller than the sum of its proper divisors (78573376).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
52515008 is a wasteful number, since it uses less digits than its factorization.
52515008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 230 (or 220 counting only the distinct ones).
The product of its (nonzero) digits is 2000, while the sum is 26.
The square root of 52515008 is about 7246.7239494823. The cubic root of 52515008 is about 374.4792962780.
The spelling of 52515008 in words is "fifty-two million, five hundred fifteen thousand, eight".
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