Base | Representation |
---|---|
bin | 111010110000… |
… | …0010000010001 |
3 | 2010221221201102 |
4 | 1311200100101 |
5 | 30341143321 |
6 | 3020114145 |
7 | 522551360 |
oct | 165402021 |
9 | 63857642 |
10 | 30802961 |
11 | 164297a2 |
12 | a395955 |
13 | 64c6607 |
14 | 413b7d7 |
15 | 2a86c0b |
hex | 1d60411 |
30802961 has 8 divisors (see below), whose sum is σ = 35481600. Its totient is φ = 26193888.
The previous prime is 30802903. The next prime is 30802973. The reversal of 30802961 is 16920803.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30802961 - 218 = 30540817 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30802991) 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, 16436 + ... + 18213.
It is an arithmetic number, because the mean of its divisors is an integer number (4435200).
Almost surely, 230802961 is an apocalyptic number.
It is an amenable number.
30802961 is a deficient number, since it is larger than the sum of its proper divisors (4678639).
30802961 is a wasteful number, since it uses less digits than its factorization.
30802961 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34783.
The product of its (nonzero) digits is 2592, while the sum is 29.
The square root of 30802961 is about 5550.0415313761. The cubic root of 30802961 is about 313.4710861278.
The spelling of 30802961 in words is "thirty million, eight hundred two thousand, nine hundred sixty-one".
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