Base | Representation |
---|---|
bin | 111001100100… |
… | …0011011011010 |
3 | 2002210100122212 |
4 | 1303020123122 |
5 | 30211243312 |
6 | 2554515122 |
7 | 514351331 |
oct | 163103332 |
9 | 62710585 |
10 | 30181082 |
11 | 16044548 |
12 | a135aa2 |
13 | 6339539 |
14 | 4018d18 |
15 | 29b2822 |
hex | 1cc86da |
30181082 has 8 divisors (see below), whose sum is σ = 47654400. Its totient is φ = 14296284.
The previous prime is 30181033. The next prime is 30181117. The reversal of 30181082 is 28018103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 397082 + ... + 397157.
It is an arithmetic number, because the mean of its divisors is an integer number (5956800).
Almost surely, 230181082 is an apocalyptic number.
30181082 is a deficient number, since it is larger than the sum of its proper divisors (17473318).
30181082 is a wasteful number, since it uses less digits than its factorization.
30181082 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 794260.
The product of its (nonzero) digits is 384, while the sum is 23.
The square root of 30181082 is about 5493.7311546890. The cubic root of 30181082 is about 311.3471790015.
Adding to 30181082 its reverse (28018103), we get a palindrome (58199185).
The spelling of 30181082 in words is "thirty million, one hundred eighty-one thousand, eighty-two".
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