Base | Representation |
---|---|
bin | 10101100011101… |
… | …11000101000000 |
3 | 110121021202201002 |
4 | 22301313011000 |
5 | 332243432231 |
6 | 25540031132 |
7 | 4324065350 |
oct | 1261670500 |
9 | 417252632 |
10 | 180842816 |
11 | 93098980 |
12 | 506924a8 |
13 | 2b60a6ab |
14 | 1a036b60 |
15 | 10d230cb |
hex | ac77140 |
180842816 has 56 divisors (see below), whose sum is σ = 447422016. Its totient is φ = 70456320.
The previous prime is 180842803. The next prime is 180842863. The reversal of 180842816 is 618248081.
180842816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (56).
It is a self number, because there is not a number n which added to its sum of digits gives 180842816.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13421 + ... + 23276.
Almost surely, 2180842816 is an apocalyptic number.
180842816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
180842816 is an abundant number, since it is smaller than the sum of its proper divisors (266579200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
180842816 is a wasteful number, since it uses less digits than its factorization.
180842816 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36727 (or 36717 counting only the distinct ones).
The product of its (nonzero) digits is 24576, while the sum is 38.
The square root of 180842816 is about 13447.7810809070. The cubic root of 180842816 is about 565.5014901655.
The spelling of 180842816 in words is "one hundred eighty million, eight hundred forty-two thousand, eight hundred sixteen".
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