Base | Representation |
---|---|
bin | 11100010101010001… |
… | …010111010100010011 |
3 | 2220112010200122222102 |
4 | 130111101113110103 |
5 | 444300420111223 |
6 | 21550413231015 |
7 | 2124606466202 |
oct | 342521272423 |
9 | 86463618872 |
10 | 30421644563 |
11 | 119a1252912 |
12 | 5a9019246b |
13 | 2b3a84451b |
14 | 1688445239 |
15 | bd0b65928 |
hex | 715457513 |
30421644563 has 8 divisors (see below), whose sum is σ = 31490472960. Its totient is φ = 29358284040.
The previous prime is 30421644511. The next prime is 30421644569. The reversal of 30421644563 is 36544612403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30421644563 - 26 = 30421644499 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30421644569) 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, 1355645 + ... + 1377902.
It is an arithmetic number, because the mean of its divisors is an integer number (3936309120).
Almost surely, 230421644563 is an apocalyptic number.
30421644563 is a deficient number, since it is larger than the sum of its proper divisors (1068828397).
30421644563 is a wasteful number, since it uses less digits than its factorization.
30421644563 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2733937.
The product of its (nonzero) digits is 207360, while the sum is 38.
The spelling of 30421644563 in words is "thirty billion, four hundred twenty-one million, six hundred forty-four thousand, five hundred sixty-three".
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