Base | Representation |
---|---|
bin | 11011111100010001… |
… | …000011000111101000 |
3 | 2212102220022012011001 |
4 | 123330101003013220 |
5 | 442421021201212 |
6 | 21441025444344 |
7 | 2111323623640 |
oct | 337421030750 |
9 | 85386265131 |
10 | 30002131432 |
11 | 117a646a449 |
12 | 59937a06b4 |
13 | 2aa19602c0 |
14 | 1648841520 |
15 | ba8dea657 |
hex | 6fc4431e8 |
30002131432 has 32 divisors (see below), whose sum is σ = 69235689600. Its totient is φ = 11868974784.
The previous prime is 30002131399. The next prime is 30002131433. The reversal of 30002131432 is 23413120003.
It is not an unprimeable number, because it can be changed into a prime (30002131433) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20605132 + ... + 20606587.
It is an arithmetic number, because the mean of its divisors is an integer number (2163615300).
Almost surely, 230002131432 is an apocalyptic number.
It is an amenable number.
30002131432 is an abundant number, since it is smaller than the sum of its proper divisors (39233558168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30002131432 is a wasteful number, since it uses less digits than its factorization.
30002131432 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41211745 (or 41211741 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 30002131432 its reverse (23413120003), we get a palindrome (53415251435).
The spelling of 30002131432 in words is "thirty billion, two million, one hundred thirty-one thousand, four hundred thirty-two".
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