| Base | Representation |
|---|---|
| bin | 111010001111… |
| … | …0010111101100 |
| 3 | 2010110020112120 |
| 4 | 1310132113230 |
| 5 | 30304024400 |
| 6 | 3010232540 |
| 7 | 520345533 |
| oct | 164362754 |
| 9 | 63406476 |
| 10 | 30533100 |
| 11 | 16264a74 |
| 12 | a285750 |
| 13 | 6430830 |
| 14 | 40ab31a |
| 15 | 2a31ca0 |
| hex | 1d1e5ec |
30533100 has 72 divisors (see below), whose sum is σ = 95150160. Its totient is φ = 7514880.
The previous prime is 30533099. The next prime is 30533101. The reversal of 30533100 is 133503.
It is an interprime number because it is at equal distance from previous prime (30533099) and next prime (30533101).
It is a super-2 number, since 2×305331002 = 1864540391220000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 30533100.
It is not an unprimeable number, because it can be changed into a prime (30533101) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15 + ... + 7814.
It is an arithmetic number, because the mean of its divisors is an integer number (1321530).
Almost surely, 230533100 is an apocalyptic number.
30533100 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 30533100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47575080).
30533100 is an abundant number, since it is smaller than the sum of its proper divisors (64617060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30533100 is a wasteful number, since it uses less digits than its factorization.
30533100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7859 (or 7852 counting only the distinct ones).
The product of its (nonzero) digits is 135, while the sum is 15.
The square root of 30533100 is about 5525.6764291804. The cubic root of 30533100 is about 312.5529723534.
Adding to 30533100 its reverse (133503), we get a palindrome (30666603).
The spelling of 30533100 in words is "thirty million, five hundred thirty-three thousand, one hundred".
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