Base | Representation |
---|---|
bin | 111011000011… |
… | …0110011111101 |
3 | 2011020222100202 |
4 | 1312012303331 |
5 | 30411222033 |
6 | 3023333245 |
7 | 524106665 |
oct | 166066375 |
9 | 64228322 |
10 | 30960893 |
11 | 16527417 |
12 | a451225 |
13 | 6550472 |
14 | 417d1a5 |
15 | 2ab88e8 |
hex | 1d86cfd |
30960893 has 8 divisors (see below), whose sum is σ = 33913080. Its totient is φ = 28134400.
The previous prime is 30960883. The next prime is 30960907. The reversal of 30960893 is 39806903.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 2679769 + 28281124 = 1637^2 + 5318^2 .
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 30960893 - 28 = 30960637 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 (30960803) 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, 30908 + ... + 31893.
It is an arithmetic number, because the mean of its divisors is an integer number (4239135).
Almost surely, 230960893 is an apocalyptic number.
It is an amenable number.
30960893 is a deficient number, since it is larger than the sum of its proper divisors (2952187).
30960893 is a wasteful number, since it uses less digits than its factorization.
30960893 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62847.
The product of its (nonzero) digits is 34992, while the sum is 38.
The square root of 30960893 is about 5564.2513422742. The cubic root of 30960893 is about 314.0059129074.
The spelling of 30960893 in words is "thirty million, nine hundred sixty thousand, eight hundred ninety-three".
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