Base | Representation |
---|---|
bin | 1001100010011… |
… | …01000101101010 |
3 | 12120112210200212 |
4 | 10301031011222 |
5 | 130440220110 |
6 | 11534501122 |
7 | 1661024051 |
oct | 461150552 |
9 | 176483625 |
10 | 80007530 |
11 | 41186929 |
12 | 229647a2 |
13 | 13763945 |
14 | a8a9398 |
15 | 7055e05 |
hex | 4c4d16a |
80007530 has 8 divisors (see below), whose sum is σ = 144013572. Its totient is φ = 32003008.
The previous prime is 80007527. The next prime is 80007533. The reversal of 80007530 is 3570008.
It is an interprime number because it is at equal distance from previous prime (80007527) and next prime (80007533).
It can be written as a sum of positive squares in 2 ways, for example, as 79941481 + 66049 = 8941^2 + 257^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×800075303 (a number of 25 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 80007496 and 80007505.
It is not an unprimeable number, because it can be changed into a prime (80007533) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4000367 + ... + 4000386.
Almost surely, 280007530 is an apocalyptic number.
80007530 is a deficient number, since it is larger than the sum of its proper divisors (64006042).
80007530 is a wasteful number, since it uses less digits than its factorization.
80007530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8000760.
The product of its (nonzero) digits is 840, while the sum is 23.
The square root of 80007530 is about 8944.6928398911. The cubic root of 80007530 is about 430.9004566599.
Adding to 80007530 its reverse (3570008), we get a palindrome (83577538).
The spelling of 80007530 in words is "eighty million, seven thousand, five hundred thirty".
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