| Base | Representation |
|---|---|
| bin | 111001100101… |
| … | …0101011110000 |
| 3 | 2002210211100000 |
| 4 | 1303022223300 |
| 5 | 30212042240 |
| 6 | 2555030000 |
| 7 | 514420266 |
| oct | 163125360 |
| 9 | 62724300 |
| 10 | 30190320 |
| 11 | 16050486 |
| 12 | a13b300 |
| 13 | 63407c4 |
| 14 | 401c436 |
| 15 | 29b5430 |
| hex | 1ccaaf0 |
30190320 has 120 divisors (see below), whose sum is σ = 105212016. Its totient is φ = 8045568.
The previous prime is 30190301. The next prime is 30190327. The reversal of 30190320 is 2309103.
It is a tau number, because it is divible by the number of its divisors (120).
It is a super-2 number, since 2×301903202 = 1822910843404800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 30190293 and 30190302.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30190327) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 18664 + ... + 20216.
Almost surely, 230190320 is an apocalyptic number.
30190320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30190320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52606008).
30190320 is an abundant number, since it is smaller than the sum of its proper divisors (75021696).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30190320 is a wasteful number, since it uses less digits than its factorization.
30190320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1581 (or 1563 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
The square root of 30190320 is about 5494.5718668519. The cubic root of 30190320 is about 311.3789420756.
Adding to 30190320 its reverse (2309103), we get a palindrome (32499423).
The spelling of 30190320 in words is "thirty million, one hundred ninety thousand, three hundred twenty".
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