Base | Representation |
---|---|
bin | 11100001001111011… |
… | …110101011001011001 |
3 | 2220000212210211202201 |
4 | 130021323311121121 |
5 | 443403222414400 |
6 | 21515500530201 |
7 | 2120110044523 |
oct | 341173653131 |
9 | 86025724681 |
10 | 30231451225 |
11 | 11903958838 |
12 | 5a38550961 |
13 | 2b0a311aa1 |
14 | 166b096a13 |
15 | bbe0e706a |
hex | 709ef5659 |
30231451225 has 6 divisors (see below), whose sum is σ = 37486999550. Its totient is φ = 24185160960.
The previous prime is 30231451207. The next prime is 30231451253. The reversal of 30231451225 is 52215413203.
It can be written as a sum of positive squares in 3 ways, for example, as 1476788041 + 28754663184 = 38429^2 + 169572^2 .
It is not a de Polignac number, because 30231451225 - 27 = 30231451097 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30231451193 and 30231451202.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 604629000 + ... + 604629049.
Almost surely, 230231451225 is an apocalyptic number.
It is an amenable number.
30231451225 is a deficient number, since it is larger than the sum of its proper divisors (7255548325).
30231451225 is a wasteful number, since it uses less digits than its factorization.
30231451225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1209258059 (or 1209258054 counting only the distinct ones).
The product of its (nonzero) digits is 7200, while the sum is 28.
Adding to 30231451225 its reverse (52215413203), we get a palindrome (82446864428).
The spelling of 30231451225 in words is "thirty billion, two hundred thirty-one million, four hundred fifty-one thousand, two hundred twenty-five".
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