Base | Representation |
---|---|
bin | 111001101111… |
… | …0010110010110 |
3 | 2002221220211100 |
4 | 1303132112112 |
5 | 30222131440 |
6 | 3000450530 |
7 | 515204160 |
oct | 163362626 |
9 | 62856740 |
10 | 30270870 |
11 | 160a5a53 |
12 | a179a46 |
13 | 636b376 |
14 | 403d930 |
15 | 29ce230 |
hex | 1cde596 |
30270870 has 48 divisors (see below), whose sum is σ = 89949600. Its totient is φ = 6918912.
The previous prime is 30270827. The next prime is 30270883. The reversal of 30270870 is 7807203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23395 + ... + 24654.
It is an arithmetic number, because the mean of its divisors is an integer number (1873950).
Almost surely, 230270870 is an apocalyptic number.
30270870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30270870 is an abundant number, since it is smaller than the sum of its proper divisors (59678730).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30270870 is a wasteful number, since it uses less digits than its factorization.
30270870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48069 (or 48066 counting only the distinct ones).
The product of its (nonzero) digits is 2352, while the sum is 27.
The square root of 30270870 is about 5501.8969455998. The cubic root of 30270870 is about 311.6556234787.
The spelling of 30270870 in words is "thirty million, two hundred seventy thousand, eight hundred seventy".
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