Base | Representation |
---|---|
bin | 111010001011… |
… | …1110001100100 |
3 | 2010101212110222 |
4 | 1310113301210 |
5 | 30302143314 |
6 | 3005503512 |
7 | 520204010 |
oct | 164276144 |
9 | 63355428 |
10 | 30506084 |
11 | 16246744 |
12 | a271b98 |
13 | 642144b |
14 | 40a1540 |
15 | 2a28c8e |
hex | 1d17c64 |
30506084 has 12 divisors (see below), whose sum is σ = 61012224. Its totient is φ = 13074024.
The previous prime is 30506071. The next prime is 30506107. The reversal of 30506084 is 48060503.
30506084 is an admirable number.
It is a super-2 number, since 2×305060842 = 1861242322030112, which contains 22 as substring.
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, 544724 + ... + 544779.
It is an arithmetic number, because the mean of its divisors is an integer number (5084352).
Almost surely, 230506084 is an apocalyptic number.
It is an amenable number.
30506084 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30506084 is a wasteful number, since it uses less digits than its factorization.
30506084 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1089514 (or 1089512 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 26.
The square root of 30506084 is about 5523.2313006066. The cubic root of 30506084 is about 312.4607617934.
Adding to 30506084 its reverse (48060503), we get a palindrome (78566587).
The spelling of 30506084 in words is "thirty million, five hundred six thousand, eighty-four".
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