Base | Representation |
---|---|
bin | 11100100011110111… |
… | …000100100111000000 |
3 | 2221011012021001121222 |
4 | 130203313010213000 |
5 | 1000301100113212 |
6 | 22030555334212 |
7 | 2133641121260 |
oct | 344367044700 |
9 | 87135231558 |
10 | 30666410432 |
11 | 12007431059 |
12 | 5b3a151368 |
13 | 2b794736b8 |
14 | 16acb5b7a0 |
15 | be73b3c72 |
hex | 723dc49c0 |
30666410432 has 112 divisors (see below), whose sum is σ = 73788422400. Its totient is φ = 12344389632.
The previous prime is 30666410431. The next prime is 30666410443. The reversal of 30666410432 is 23401466603.
It is a tau number, because it is divible by the number of its divisors (112).
It is a junction number, because it is equal to n+sod(n) for n = 30666410392 and 30666410401.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30666410431) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3979319 + ... + 3987017.
It is an arithmetic number, because the mean of its divisors is an integer number (658825200).
Almost surely, 230666410432 is an apocalyptic number.
30666410432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30666410432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36894211200).
30666410432 is an abundant number, since it is smaller than the sum of its proper divisors (43122011968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30666410432 is a wasteful number, since it uses less digits than its factorization.
30666410432 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8258 (or 8248 counting only the distinct ones).
The product of its (nonzero) digits is 62208, while the sum is 35.
The spelling of 30666410432 in words is "thirty billion, six hundred sixty-six million, four hundred ten thousand, four hundred thirty-two".
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