Base | Representation |
---|---|
bin | 111110111111… |
… | …1111111110011 |
3 | 2022011002211012 |
4 | 1331333333303 |
5 | 31423431011 |
6 | 3135541135 |
7 | 550515521 |
oct | 175777763 |
9 | 68132735 |
10 | 33030131 |
11 | 17710032 |
12 | b08a7ab |
13 | 6ac6274 |
14 | 455b311 |
15 | 2d76a8b |
hex | 1f7fff3 |
33030131 has 8 divisors (see below), whose sum is σ = 33585744. Its totient is φ = 32479200.
The previous prime is 33030121. The next prime is 33030163. The reversal of 33030131 is 13103033.
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 33030131 - 210 = 33029107 is a prime.
It is a super-2 number, since 2×330301312 = 2181979107754322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (33030121) 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, 14816 + ... + 16898.
It is an arithmetic number, because the mean of its divisors is an integer number (4198218).
Almost surely, 233030131 is an apocalyptic number.
33030131 is a deficient number, since it is larger than the sum of its proper divisors (555613).
33030131 is a wasteful number, since it uses less digits than its factorization.
33030131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2341.
The product of its (nonzero) digits is 81, while the sum is 14.
The square root of 33030131 is about 5747.1846150963. The cubic root of 33030131 is about 320.8510257442.
Adding to 33030131 its reverse (13103033), we get a palindrome (46133164).
The spelling of 33030131 in words is "thirty-three million, thirty thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •