Base | Representation |
---|---|
bin | 111010010100… |
… | …1111011010000 |
3 | 2010112122110121 |
4 | 1310221323100 |
5 | 30312033212 |
6 | 3011240024 |
7 | 520633531 |
oct | 164517320 |
9 | 63478417 |
10 | 30580432 |
11 | 16297593 |
12 | a2a9014 |
13 | 644923c |
14 | 40c0688 |
15 | 2a40d07 |
hex | 1d29ed0 |
30580432 has 30 divisors (see below), whose sum is σ = 61954802. Its totient is φ = 14621376.
The previous prime is 30580421. The next prime is 30580469. The reversal of 30580432 is 23408503.
It can be written as a sum of positive squares in only one way, i.e., 15649936 + 14930496 = 3956^2 + 3864^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30580397 and 30580406.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6658 + ... + 10270.
Almost surely, 230580432 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 30580432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30977401).
30580432 is an abundant number, since it is smaller than the sum of its proper divisors (31374370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30580432 is a wasteful number, since it uses less digits than its factorization.
30580432 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3667 (or 3638 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 25.
The square root of 30580432 is about 5529.9576851907. The cubic root of 30580432 is about 312.7143941056.
Adding to 30580432 its reverse (23408503), we get a palindrome (53988935).
The spelling of 30580432 in words is "thirty million, five hundred eighty thousand, four hundred thirty-two".
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