Base | Representation |
---|---|
bin | 111010111001… |
… | …1010000101000 |
3 | 2011002220111122 |
4 | 1311303100220 |
5 | 30401141213 |
6 | 3021514412 |
7 | 523324340 |
oct | 165632050 |
9 | 64086448 |
10 | 30880808 |
11 | 16482232 |
12 | a412a08 |
13 | 6522b8a |
14 | 415bd20 |
15 | 2a9ed08 |
hex | 1d73428 |
30880808 has 16 divisors (see below), whose sum is σ = 66173280. Its totient is φ = 13234608.
The previous prime is 30880807. The next prime is 30880813. The reversal of 30880808 is 80808803.
It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (30880807) 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, 275666 + ... + 275777.
It is an arithmetic number, because the mean of its divisors is an integer number (4135830).
Almost surely, 230880808 is an apocalyptic number.
It is an amenable number.
30880808 is an abundant number, since it is smaller than the sum of its proper divisors (35292472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30880808 is a wasteful number, since it uses less digits than its factorization.
30880808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 551456 (or 551452 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 35.
The square root of 30880808 is about 5557.0502966952. The cubic root of 30880808 is about 313.7349379816.
The spelling of 30880808 in words is "thirty million, eight hundred eighty thousand, eight hundred eight".
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