Base | Representation |
---|---|
bin | 111001111010… |
… | …1101110110001 |
3 | 2010010210012102 |
4 | 1303311232301 |
5 | 30233213031 |
6 | 3002510145 |
7 | 516053324 |
oct | 163655661 |
9 | 63123172 |
10 | 30366641 |
11 | 161609a8 |
12 | a205355 |
13 | 63a2b36 |
14 | 40667bb |
15 | 29ec7cb |
hex | 1cf5bb1 |
30366641 has 8 divisors (see below), whose sum is σ = 32201064. Its totient is φ = 28537600.
The previous prime is 30366631. The next prime is 30366649. The reversal of 30366641 is 14666303.
It can be written as a sum of positive squares in 4 ways, for example, as 7134241 + 23232400 = 2671^2 + 4820^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30366641 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30366649) 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, 21431 + ... + 22803.
It is an arithmetic number, because the mean of its divisors is an integer number (4025133).
Almost surely, 230366641 is an apocalyptic number.
It is an amenable number.
30366641 is a deficient number, since it is larger than the sum of its proper divisors (1834423).
30366641 is a wasteful number, since it uses less digits than its factorization.
30366641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2691.
The product of its (nonzero) digits is 7776, while the sum is 29.
The square root of 30366641 is about 5510.5935252022. The cubic root of 30366641 is about 311.9839495633.
The spelling of 30366641 in words is "thirty million, three hundred sixty-six thousand, six hundred forty-one".
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