Base | Representation |
---|---|
bin | 11100010111010110… |
… | …000100101011000001 |
3 | 2220121120011010012211 |
4 | 130113112010223001 |
5 | 444333321331340 |
6 | 21554055022121 |
7 | 2125511261212 |
oct | 342726045301 |
9 | 86546133184 |
10 | 30456433345 |
11 | 11a09954178 |
12 | 5a9b96a941 |
13 | 2b44b050c0 |
14 | 168ccdd409 |
15 | bd3c385ea |
hex | 717584ac1 |
30456433345 has 32 divisors (see below), whose sum is σ = 39794418720. Its totient is φ = 22242662400.
The previous prime is 30456433307. The next prime is 30456433349. The reversal of 30456433345 is 54333465403.
It can be written as a sum of positive squares in 16 ways, for example, as 404130609 + 30052302736 = 20103^2 + 173356^2 .
It is not a de Polignac number, because 30456433345 - 29 = 30456432833 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30456433298 and 30456433307.
It is not an unprimeable number, because it can be changed into a prime (30456433349) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7199691 + ... + 7203919.
It is an arithmetic number, because the mean of its divisors is an integer number (1243575585).
Almost surely, 230456433345 is an apocalyptic number.
It is an amenable number.
30456433345 is a deficient number, since it is larger than the sum of its proper divisors (9337985375).
30456433345 is a wasteful number, since it uses less digits than its factorization.
30456433345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5445.
The product of its (nonzero) digits is 777600, while the sum is 40.
Adding to 30456433345 its reverse (54333465403), we get a palindrome (84789898748).
The spelling of 30456433345 in words is "thirty billion, four hundred fifty-six million, four hundred thirty-three thousand, three hundred forty-five".
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