Base | Representation |
---|---|
bin | 111010111001… |
… | …1111111110001 |
3 | 2011010001122101 |
4 | 1311303333301 |
5 | 30401240300 |
6 | 3021540401 |
7 | 523336210 |
oct | 165637761 |
9 | 64101571 |
10 | 30883825 |
11 | 16484525 |
12 | a414701 |
13 | 652436b |
14 | 415d077 |
15 | 2aa0b6a |
hex | 1d73ff1 |
30883825 has 24 divisors (see below), whose sum is σ = 45675648. Its totient is φ = 20254080.
The previous prime is 30883823. The next prime is 30883837. The reversal of 30883825 is 52838803.
It is a happy number.
It is not a de Polignac number, because 30883825 - 21 = 30883823 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30883823) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189 + ... + 7861.
It is an arithmetic number, because the mean of its divisors is an integer number (1903152).
Almost surely, 230883825 is an apocalyptic number.
30883825 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30883825 is a deficient number, since it is larger than the sum of its proper divisors (14791823).
30883825 is a wasteful number, since it uses less digits than its factorization.
30883825 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7713 (or 7708 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 37.
The square root of 30883825 is about 5557.3217470289. The cubic root of 30883825 is about 313.7451547640.
The spelling of 30883825 in words is "thirty million, eight hundred eighty-three thousand, eight hundred twenty-five".
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