Base | Representation |
---|---|
bin | 11011111110000000… |
… | …111001110101100111 |
3 | 2212111221110220112011 |
4 | 123332000321311213 |
5 | 443001023003133 |
6 | 21443554135051 |
7 | 2112131100100 |
oct | 337600716547 |
9 | 85457426464 |
10 | 30031453543 |
11 | 11810a775a3 |
12 | 59a1581487 |
13 | 2aa7a58870 |
14 | 164c6b53a7 |
15 | bab78d6cd |
hex | 6fe039d67 |
30031453543 has 24 divisors (see below), whose sum is σ = 37660352352. Its totient is φ = 23736815424.
The previous prime is 30031453511. The next prime is 30031453567. The reversal of 30031453543 is 34535413003.
It is not a de Polignac number, because 30031453543 - 25 = 30031453511 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30031453943) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 611446 + ... + 658732.
It is an arithmetic number, because the mean of its divisors is an integer number (1569181348).
Almost surely, 230031453543 is an apocalyptic number.
30031453543 is a deficient number, since it is larger than the sum of its proper divisors (7628898809).
30031453543 is a wasteful number, since it uses less digits than its factorization.
30031453543 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48311 (or 48304 counting only the distinct ones).
The product of its (nonzero) digits is 32400, while the sum is 31.
Adding to 30031453543 its reverse (34535413003), we get a palindrome (64566866546).
The spelling of 30031453543 in words is "thirty billion, thirty-one million, four hundred fifty-three thousand, five hundred forty-three".
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