Base | Representation |
---|---|
bin | 11100001110101000… |
… | …010100100100110011 |
3 | 2220020101000211010200 |
4 | 130032220110210303 |
5 | 444033404102011 |
6 | 21531353130243 |
7 | 2122054431360 |
oct | 341650244463 |
9 | 86211024120 |
10 | 30310222131 |
11 | 1194436a562 |
12 | 5a5a9b9983 |
13 | 2b207318a7 |
14 | 167771d467 |
15 | bc5ea6856 |
hex | 70ea14933 |
30310222131 has 96 divisors (see below), whose sum is σ = 57567744000. Its totient is φ = 14944849920.
The previous prime is 30310222123. The next prime is 30310222177. The reversal of 30310222131 is 13122201303.
30310222131 is a `hidden beast` number, since 3 + 0 + 310 + 222 + 131 = 666.
It is not a de Polignac number, because 30310222131 - 23 = 30310222123 is a prime.
It is a super-2 number, since 2×303102221312 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30310222331) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 606795 + ... + 654843.
It is an arithmetic number, because the mean of its divisors is an integer number (599664000).
Almost surely, 230310222131 is an apocalyptic number.
30310222131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
30310222131 is a deficient number, since it is larger than the sum of its proper divisors (27257521869).
30310222131 is a wasteful number, since it uses less digits than its factorization.
30310222131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48129 (or 48126 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 30310222131 its reverse (13122201303), we get a palindrome (43432423434).
The spelling of 30310222131 in words is "thirty billion, three hundred ten million, two hundred twenty-two thousand, one hundred thirty-one".
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