Base | Representation |
---|---|
bin | 111010111000… |
… | …1001100100000 |
3 | 2011002110220110 |
4 | 1311301030200 |
5 | 30400403402 |
6 | 3021411320 |
7 | 523260600 |
oct | 165611440 |
9 | 64073813 |
10 | 30872352 |
11 | 16476945 |
12 | a409b40 |
13 | 651c084 |
14 | 4158c00 |
15 | 2a9c56c |
hex | 1d71320 |
30872352 has 72 divisors (see below), whose sum is σ = 94285296. Its totient is φ = 8819328.
The previous prime is 30872333. The next prime is 30872381. The reversal of 30872352 is 25327803.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1423 + ... + 7985.
It is an arithmetic number, because the mean of its divisors is an integer number (1309518).
Almost surely, 230872352 is an apocalyptic number.
30872352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30872352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47142648).
30872352 is an abundant number, since it is smaller than the sum of its proper divisors (63412944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30872352 is a wasteful number, since it uses less digits than its factorization.
30872352 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6590 (or 6575 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 30.
The square root of 30872352 is about 5556.2894093091. The cubic root of 30872352 is about 313.7062989984.
The spelling of 30872352 in words is "thirty million, eight hundred seventy-two thousand, three hundred fifty-two".
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