Base | Representation |
---|---|
bin | 11100010111001110… |
… | …011010000111010101 |
3 | 2220121102101000221102 |
4 | 130113032122013111 |
5 | 444332313032041 |
6 | 21553543555445 |
7 | 2125455222140 |
oct | 342716320725 |
9 | 86542330842 |
10 | 30454424021 |
11 | 11a0880157a |
12 | 5a9b15bb85 |
13 | 2b44580658 |
14 | 168c939057 |
15 | bd398d09b |
hex | 71739a1d5 |
30454424021 has 8 divisors (see below), whose sum is σ = 34816275840. Its totient is φ = 26095377168.
The previous prime is 30454423997. The next prime is 30454424029. The reversal of 30454424021 is 12042445403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30454424021 - 234 = 13274554837 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30454424029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677921 + ... + 721446.
It is an arithmetic number, because the mean of its divisors is an integer number (4352034480).
Almost surely, 230454424021 is an apocalyptic number.
It is an amenable number.
30454424021 is a deficient number, since it is larger than the sum of its proper divisors (4361851819).
30454424021 is a wasteful number, since it uses less digits than its factorization.
30454424021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1402483.
The product of its (nonzero) digits is 15360, while the sum is 29.
Adding to 30454424021 its reverse (12042445403), we get a palindrome (42496869424).
The spelling of 30454424021 in words is "thirty billion, four hundred fifty-four million, four hundred twenty-four thousand, twenty-one".
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