Base | Representation |
---|---|
bin | 1001100110010… |
… | …11100001110110 |
3 | 12121112010010100 |
4 | 10303023201312 |
5 | 131103303210 |
6 | 11553534530 |
7 | 1665312006 |
oct | 463134166 |
9 | 177463110 |
10 | 80525430 |
11 | 414aaa47 |
12 | 22b74446 |
13 | 138b55ab |
14 | a9a2006 |
15 | 71095c0 |
hex | 4ccb876 |
80525430 has 48 divisors (see below), whose sum is σ = 221685984. Its totient is φ = 20209920.
The previous prime is 80525387. The next prime is 80525441. The reversal of 80525430 is 3452508.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 80525394 and 80525403.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24786 + ... + 27845.
It is an arithmetic number, because the mean of its divisors is an integer number (4618458).
Almost surely, 280525430 is an apocalyptic number.
80525430 is an abundant number, since it is smaller than the sum of its proper divisors (141160554).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80525430 is a wasteful number, since it uses less digits than its factorization.
80525430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52661 (or 52658 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 27.
The square root of 80525430 is about 8973.5962690551. The cubic root of 80525430 is about 431.8282174516.
Adding to 80525430 its reverse (3452508), we get a palindrome (83977938).
The spelling of 80525430 in words is "eighty million, five hundred twenty-five thousand, four hundred thirty".
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