Base | Representation |
---|---|
bin | 111010010000… |
… | …0100000110011 |
3 | 2010110200120120 |
4 | 1310200200303 |
5 | 30304320000 |
6 | 3010341323 |
7 | 520413240 |
oct | 164404063 |
9 | 63420516 |
10 | 30541875 |
11 | 16270621 |
12 | a28a843 |
13 | 6434820 |
14 | 40b05c7 |
15 | 2a346a0 |
hex | 1d20833 |
30541875 has 80 divisors (see below), whose sum is σ = 62979840. Its totient is φ = 12816000.
The previous prime is 30541867. The next prime is 30541897. The reversal of 30541875 is 57814503.
It is not a de Polignac number, because 30541875 - 23 = 30541867 is a prime.
It is a super-2 number, since 2×305418752 = 1865612257031250, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 170536 + ... + 170714.
It is an arithmetic number, because the mean of its divisors is an integer number (787248).
Almost surely, 230541875 is an apocalyptic number.
30541875 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30541875 is an abundant number, since it is smaller than the sum of its proper divisors (32437965).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30541875 is a wasteful number, since it uses less digits than its factorization.
30541875 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 222 (or 207 counting only the distinct ones).
The product of its (nonzero) digits is 16800, while the sum is 33.
The square root of 30541875 is about 5526.4703925743. The cubic root of 30541875 is about 312.5829113337.
The spelling of 30541875 in words is "thirty million, five hundred forty-one thousand, eight hundred seventy-five".
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