Base | Representation |
---|---|
bin | 111010010100… |
… | …1110100100000 |
3 | 2010112121212121 |
4 | 1310221310200 |
5 | 30312030000 |
6 | 3011234024 |
7 | 520632343 |
oct | 164516440 |
9 | 63477777 |
10 | 30580000 |
11 | 16297230 |
12 | a2a8914 |
13 | 6448c99 |
14 | 40c045a |
15 | 2a40b1a |
hex | 1d29d20 |
30580000 has 120 divisors (see below), whose sum is σ = 82661040. Its totient is φ = 11040000.
The previous prime is 30579977. The next prime is 30580001. The reversal of 30580000 is 8503.
It is a super-3 number, since 3×305800003 (a number of 23 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is not an unprimeable number, because it can be changed into a prime (30580001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 219931 + ... + 220069.
It is an arithmetic number, because the mean of its divisors is an integer number (688842).
Almost surely, 230580000 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 30580000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41330520).
30580000 is an abundant number, since it is smaller than the sum of its proper divisors (52081040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30580000 is a wasteful number, since it uses less digits than its factorization.
30580000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180 (or 157 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 30580000 is about 5529.9186250794. The cubic root of 30580000 is about 312.7129215598.
Adding to 30580000 its reverse (8503), we get a palindrome (30588503).
The spelling of 30580000 in words is "thirty million, five hundred eighty thousand".
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