Base | Representation |
---|---|
bin | 11100100010011110… |
… | …001101010001100000 |
3 | 2221002120102112110001 |
4 | 130202132031101200 |
5 | 1000224114140404 |
6 | 22024404145344 |
7 | 2133236116000 |
oct | 344236152140 |
9 | 87076375401 |
10 | 30643115104 |
11 | 11aa526aa18 |
12 | 5b32398254 |
13 | 2b746a8394 |
14 | 16a9a16000 |
15 | be53117a4 |
hex | 72278d460 |
30643115104 has 96 divisors (see below), whose sum is σ = 72624384000. Its totient is φ = 12708984960.
The previous prime is 30643115057. The next prime is 30643115123. The reversal of 30643115104 is 40151134603.
It is a Harshad number since it is a multiple of its sum of digits (28).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295227 + ... + 385285.
It is an arithmetic number, because the mean of its divisors is an integer number (756504000).
Almost surely, 230643115104 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30643115104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36312192000).
30643115104 is an abundant number, since it is smaller than the sum of its proper divisors (41981268896).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30643115104 is an equidigital number, since it uses as much as digits as its factorization.
30643115104 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 90121 (or 90099 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 28.
Adding to 30643115104 its reverse (40151134603), we get a palindrome (70794249707).
The spelling of 30643115104 in words is "thirty billion, six hundred forty-three million, one hundred fifteen thousand, one hundred four".
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