Base | Representation |
---|---|
bin | 111010100011… |
… | …1001000010000 |
3 | 2010202201112211 |
4 | 1311013020100 |
5 | 30324400143 |
6 | 3014001504 |
7 | 521642341 |
oct | 165071020 |
9 | 63681484 |
10 | 30700048 |
11 | 16369445 |
12 | a346294 |
13 | 648b812 |
14 | 41120c8 |
15 | 2a6649d |
hex | 1d47210 |
30700048 has 20 divisors (see below), whose sum is σ = 62612560. Its totient is φ = 14541984.
The previous prime is 30700039. The next prime is 30700049. The reversal of 30700048 is 84000703.
It is not an unprimeable number, because it can be changed into a prime (30700049) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50190 + ... + 50797.
It is an arithmetic number, because the mean of its divisors is an integer number (3130628).
Almost surely, 230700048 is an apocalyptic number.
30700048 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
It is an amenable number.
30700048 is an abundant number, since it is smaller than the sum of its proper divisors (31912512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30700048 is a wasteful number, since it uses less digits than its factorization.
30700048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101014 (or 101008 counting only the distinct ones).
The product of its (nonzero) digits is 672, while the sum is 22.
The square root of 30700048 is about 5540.7624024136. The cubic root of 30700048 is about 313.1215932766.
The spelling of 30700048 in words is "thirty million, seven hundred thousand, forty-eight".
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