Base | Representation |
---|---|
bin | 10101100101010… |
… | …00101100001100 |
3 | 110121200002110110 |
4 | 22302220230030 |
5 | 332321433103 |
6 | 25544240020 |
7 | 4325602662 |
oct | 1262505414 |
9 | 417602413 |
10 | 181046028 |
11 | 93217619 |
12 | 50770010 |
13 | 2b67c037 |
14 | 1a08ac32 |
15 | 10d63403 |
hex | aca8b0c |
181046028 has 24 divisors (see below), whose sum is σ = 422701888. Its totient is φ = 60311376.
The previous prime is 181046027. The next prime is 181046071. The reversal of 181046028 is 820640181.
It is a junction number, because it is equal to n+sod(n) for n = 181045986 and 181046004.
It is not an unprimeable number, because it can be changed into a prime (181046027) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21375 + ... + 28617.
Almost surely, 2181046028 is an apocalyptic number.
It is an amenable number.
181046028 is an abundant number, since it is smaller than the sum of its proper divisors (241655860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
181046028 is a wasteful number, since it uses less digits than its factorization.
181046028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9333 (or 9331 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 30.
The square root of 181046028 is about 13455.3345554839. The cubic root of 181046028 is about 565.7132277663.
The spelling of 181046028 in words is "one hundred eighty-one million, forty-six thousand, twenty-eight".
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