Base | Representation |
---|---|
bin | 10000110000110… |
… | …100001010111101 |
3 | 201121012001212021 |
4 | 100300310022331 |
5 | 1033443411221 |
6 | 43523440141 |
7 | 6653301355 |
oct | 2060641275 |
9 | 647161767 |
10 | 281232061 |
11 | 1348258a0 |
12 | 7a226051 |
13 | 46359406 |
14 | 294c9b65 |
15 | 19a53041 |
hex | 10c342bd |
281232061 has 8 divisors (see below), whose sum is σ = 306974304. Its totient is φ = 255519120.
The previous prime is 281232047. The next prime is 281232097. The reversal of 281232061 is 160232182.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 281232061 - 27 = 281231933 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (281232011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15991 + ... + 28603.
It is an arithmetic number, because the mean of its divisors is an integer number (38371788).
Almost surely, 2281232061 is an apocalyptic number.
It is an amenable number.
281232061 is a deficient number, since it is larger than the sum of its proper divisors (25742243).
281232061 is a wasteful number, since it uses less digits than its factorization.
281232061 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14651.
The product of its (nonzero) digits is 1152, while the sum is 25.
The square root of 281232061 is about 16769.9749850738. The cubic root of 281232061 is about 655.1714183361.
The spelling of 281232061 in words is "two hundred eighty-one million, two hundred thirty-two thousand, sixty-one".
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