Base | Representation |
---|---|
bin | 111010110000… |
… | …0001111000000 |
3 | 2010221221121102 |
4 | 1311200033000 |
5 | 30341143010 |
6 | 3020113532 |
7 | 522551213 |
oct | 165401700 |
9 | 63857542 |
10 | 30802880 |
11 | 16429729 |
12 | a3958a8 |
13 | 64c6574 |
14 | 413b77a |
15 | 2a86ba5 |
hex | 1d603c0 |
30802880 has 28 divisors (see below), whose sum is σ = 73350120. Its totient is φ = 12321024.
The previous prime is 30802873. The next prime is 30802883. The reversal of 30802880 is 8820803.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30802883) 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, 47810 + ... + 48449.
Almost surely, 230802880 is an apocalyptic number.
It is an amenable number.
30802880 is an abundant number, since it is smaller than the sum of its proper divisors (42547240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30802880 is an equidigital number, since it uses as much as digits as its factorization.
30802880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 96276 (or 96266 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 29.
The square root of 30802880 is about 5550.0342341287. The cubic root of 30802880 is about 313.4708113579.
The spelling of 30802880 in words is "thirty million, eight hundred two thousand, eight hundred eighty".
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