Base | Representation |
---|---|
bin | 111001101100… |
… | …1111010000000 |
3 | 2002220222212100 |
4 | 1303121322000 |
5 | 30221041142 |
6 | 3000230400 |
7 | 515100132 |
oct | 163317200 |
9 | 62828770 |
10 | 30252672 |
11 | 1609330a |
12 | a16b400 |
13 | 6362cb8 |
14 | 4037052 |
15 | 29c8b4c |
hex | 1cd9e80 |
30252672 has 48 divisors (see below), whose sum is σ = 87058530. Its totient is φ = 10083840.
The previous prime is 30252667. The next prime is 30252679. The reversal of 30252672 is 27625203.
It can be written as a sum of positive squares in only one way, i.e., 30206016 + 46656 = 5496^2 + 216^2 .
It is a tau number, because it is divible by the number of its divisors (48).
It is not an unprimeable number, because it can be changed into a prime (30252679) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11979 + ... + 14282.
Almost surely, 230252672 is an apocalyptic number.
30252672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30252672 is an abundant number, since it is smaller than the sum of its proper divisors (56805858).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30252672 is a wasteful number, since it uses less digits than its factorization.
30252672 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26281 (or 26266 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 27.
The square root of 30252672 is about 5500.2429037271. The cubic root of 30252672 is about 311.5931580796.
Adding to 30252672 its reverse (27625203), we get a palindrome (57877875).
The spelling of 30252672 in words is "thirty million, two hundred fifty-two thousand, six hundred seventy-two".
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