Base | Representation |
---|---|
bin | 11100010101110101… |
… | …001101101100100111 |
3 | 2220112210101010022100 |
4 | 130111311031230213 |
5 | 444310321323333 |
6 | 21551350503143 |
7 | 2125052410032 |
oct | 342565155447 |
9 | 86483333270 |
10 | 30431042343 |
11 | 119a6591579 |
12 | 5a93364ab3 |
13 | 2b3c784c40 |
14 | 16897b0019 |
15 | bd18c0213 |
hex | 715d4db27 |
30431042343 has 48 divisors (see below), whose sum is σ = 47699084160. Its totient is φ = 18584197632.
The previous prime is 30431042309. The next prime is 30431042347. The reversal of 30431042343 is 34324013403.
30431042343 is a `hidden beast` number, since 3 + 0 + 4 + 310 + 4 + 2 + 343 = 666.
It is not a de Polignac number, because 30431042343 - 233 = 21841107751 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30431042347) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8862555 + ... + 8865987.
It is an arithmetic number, because the mean of its divisors is an integer number (993730920).
Almost surely, 230431042343 is an apocalyptic number.
30431042343 is a deficient number, since it is larger than the sum of its proper divisors (17268041817).
30431042343 is a wasteful number, since it uses less digits than its factorization.
30431042343 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4008 (or 4005 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 27.
Adding to 30431042343 its reverse (34324013403), we get a palindrome (64755055746).
The spelling of 30431042343 in words is "thirty billion, four hundred thirty-one million, forty-two thousand, three hundred forty-three".
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