Base | Representation |
---|---|
bin | 111011000110… |
… | …0100000000000 |
3 | 2011022011022200 |
4 | 1312030200000 |
5 | 30412443232 |
6 | 3024033200 |
7 | 524234631 |
oct | 166144000 |
9 | 64264280 |
10 | 30984192 |
11 | 16542978 |
12 | a462800 |
13 | 655ac55 |
14 | 4187888 |
15 | 2ac077c |
hex | 1d8c800 |
30984192 has 108 divisors (see below), whose sum is σ = 91723905. Its totient is φ = 10076160.
The previous prime is 30984179. The next prime is 30984223. The reversal of 30984192 is 29148903.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 22127616 + 8856576 = 4704^2 + 2976^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=3936.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 755692 + ... + 755732.
Almost surely, 230984192 is an apocalyptic number.
30984192 is a gapful number since it is divisible by the number (32) 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 30984192
30984192 is an abundant number, since it is smaller than the sum of its proper divisors (60739713).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30984192 is an equidigital number, since it uses as much as digits as its factorization.
30984192 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 110 (or 46 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The square root of 30984192 is about 5566.3445815005. The cubic root of 30984192 is about 314.0846594448.
The spelling of 30984192 in words is "thirty million, nine hundred eighty-four thousand, one hundred ninety-two".
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