Base | Representation |
---|---|
bin | 11100010101110110… |
… | …101010001110010111 |
3 | 2220112211002101012002 |
4 | 130111312222032113 |
5 | 444310420440320 |
6 | 21551402545515 |
7 | 2125055546000 |
oct | 342566521627 |
9 | 86484071162 |
10 | 30431421335 |
11 | 119a6820297 |
12 | 5a9350829b |
13 | 2b3c8885b3 |
14 | 168986c1a7 |
15 | bd1947675 |
hex | 715daa397 |
30431421335 has 32 divisors (see below), whose sum is σ = 43125504000. Its totient is φ = 20603026080.
The previous prime is 30431421289. The next prime is 30431421347. The reversal of 30431421335 is 53312413403.
It is not a de Polignac number, because 30431421335 - 26 = 30431421271 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30431421298 and 30431421307.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23180 + ... + 247790.
It is an arithmetic number, because the mean of its divisors is an integer number (1347672000).
Almost surely, 230431421335 is an apocalyptic number.
30431421335 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30431421335 is a deficient number, since it is larger than the sum of its proper divisors (12694082665).
30431421335 is an equidigital number, since it uses as much as digits as its factorization.
30431421335 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 224716 (or 224702 counting only the distinct ones).
The product of its (nonzero) digits is 12960, while the sum is 29.
Adding to 30431421335 its reverse (53312413403), we get a palindrome (83743834738).
The spelling of 30431421335 in words is "thirty billion, four hundred thirty-one million, four hundred twenty-one thousand, three hundred thirty-five".
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