Base | Representation |
---|---|
bin | 111001011011… |
… | …1100100100000 |
3 | 2002122211221110 |
4 | 1302313210200 |
5 | 30202041112 |
6 | 2553223320 |
7 | 513643116 |
oct | 162674440 |
9 | 62584843 |
10 | 30112032 |
11 | 15aa7685 |
12 | a101b40 |
13 | 6313c92 |
14 | 3ddbab6 |
15 | 299c13c |
hex | 1cb7920 |
30112032 has 48 divisors (see below), whose sum is σ = 83698272. Its totient is φ = 9446400.
The previous prime is 30111971. The next prime is 30112051. The reversal of 30112032 is 23021103.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (48).
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 30111999 and 30112017.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7594 + ... + 10857.
It is an arithmetic number, because the mean of its divisors is an integer number (1743714).
Almost surely, 230112032 is an apocalyptic number.
30112032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30112032 is an abundant number, since it is smaller than the sum of its proper divisors (53586240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30112032 is a wasteful number, since it uses less digits than its factorization.
30112032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18481 (or 18473 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 30112032 is about 5487.4431204341. The cubic root of 30112032 is about 311.1095584201.
Adding to 30112032 its reverse (23021103), we get a palindrome (53133135).
The spelling of 30112032 in words is "thirty million, one hundred twelve thousand, thirty-two".
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