Base | Representation |
---|---|
bin | 111010111011… |
… | …0001100000000 |
3 | 2011010111221210 |
4 | 1311312030000 |
5 | 30402032200 |
6 | 3022050120 |
7 | 523404321 |
oct | 165661400 |
9 | 64114853 |
10 | 30892800 |
11 | 16490244 |
12 | a419940 |
13 | 6528483 |
14 | 4162448 |
15 | 2aa3650 |
hex | 1d76300 |
30892800 has 108 divisors (see below), whose sum is σ = 102016040. Its totient is φ = 8232960.
The previous prime is 30892793. The next prime is 30892831. The reversal of 30892800 is 829803.
It is a Harshad number since it is a multiple of its sum of digits (30).
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, 18396 + ... + 20004.
Almost surely, 230892800 is an apocalyptic number.
30892800 is a gapful number since it is divisible by the number (30) 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 30892800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51008020).
30892800 is an abundant number, since it is smaller than the sum of its proper divisors (71123240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30892800 is a wasteful number, since it uses less digits than its factorization.
30892800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1638 (or 1619 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 30892800 is about 5558.1291816582. The cubic root of 30892800 is about 313.7755438111.
The spelling of 30892800 in words is "thirty million, eight hundred ninety-two thousand, eight hundred".
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