Base | Representation |
---|---|
bin | 1001100010110… |
… | …00000100011001 |
3 | 12120122002101121 |
4 | 10301120010121 |
5 | 130443140010 |
6 | 11535445241 |
7 | 1661302141 |
oct | 461300431 |
9 | 176562347 |
10 | 80052505 |
11 | 412076a5 |
12 | 22986821 |
13 | 1377b260 |
14 | a8bb921 |
15 | 70643da |
hex | 4c58119 |
80052505 has 8 divisors (see below), whose sum is σ = 103452552. Its totient is φ = 59115648.
The previous prime is 80052503. The next prime is 80052521. The reversal of 80052505 is 50525008.
It can be written as a sum of positive squares in 4 ways, for example, as 254016 + 79798489 = 504^2 + 8933^2 .
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 80052505 - 21 = 80052503 is a prime.
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 80052505.
It is not an unprimeable number, because it can be changed into a prime (80052503) 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, 615724 + ... + 615853.
It is an arithmetic number, because the mean of its divisors is an integer number (12931569).
Almost surely, 280052505 is an apocalyptic number.
It is an amenable number.
80052505 is a deficient number, since it is larger than the sum of its proper divisors (23400047).
80052505 is a wasteful number, since it uses less digits than its factorization.
80052505 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1231595.
The product of its (nonzero) digits is 2000, while the sum is 25.
The square root of 80052505 is about 8947.2065472973. The cubic root of 80052505 is about 430.9811828859.
The spelling of 80052505 in words is "eighty million, fifty-two thousand, five hundred five".
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