Base | Representation |
---|---|
bin | 11011111101111111… |
… | …100011110100110001 |
3 | 2212111220211000020122 |
4 | 123331333203310301 |
5 | 443000430214413 |
6 | 21443542420025 |
7 | 2112125102000 |
oct | 337577436461 |
9 | 85456730218 |
10 | 30031101233 |
11 | 11810856931 |
12 | 59a1431615 |
13 | 2aa79643b3 |
14 | 164c622c37 |
15 | bab71e108 |
hex | 6fdfe3d31 |
30031101233 has 8 divisors (see below), whose sum is σ = 35021692800. Its totient is φ = 25740943620.
The previous prime is 30031101209. The next prime is 30031101253. The reversal of 30031101233 is 33210113003.
It is not a de Polignac number, because 30031101233 - 28 = 30031100977 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30031101253) 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, 43776773 + ... + 43777458.
It is an arithmetic number, because the mean of its divisors is an integer number (4377711600).
Almost surely, 230031101233 is an apocalyptic number.
It is an amenable number.
30031101233 is a deficient number, since it is larger than the sum of its proper divisors (4990591567).
30031101233 is an frugal number, since it uses more digits than its factorization.
30031101233 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87554252 (or 87554238 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 30031101233 its reverse (33210113003), we get a palindrome (63241214236).
The spelling of 30031101233 in words is "thirty billion, thirty-one million, one hundred one thousand, two hundred thirty-three".
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