Base | Representation |
---|---|
bin | 11100100100001001… |
… | …111111100111110100 |
3 | 2221011112121001220002 |
4 | 130210021333213310 |
5 | 1000303332330430 |
6 | 22031253530432 |
7 | 2134031230643 |
oct | 344411774764 |
9 | 87145531802 |
10 | 30671370740 |
11 | 1200a20988a |
12 | 5b3b943a18 |
13 | 2b7a4bc3aa |
14 | 16ad68d35a |
15 | be7a43845 |
hex | 72427f9f4 |
30671370740 has 24 divisors (see below), whose sum is σ = 64428135912. Its totient is φ = 12265070720.
The previous prime is 30671370661. The next prime is 30671370761. The reversal of 30671370740 is 4707317603.
It can be written as a sum of positive squares in 4 ways, for example, as 5340101776 + 25331268964 = 73076^2 + 159158^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30671370694 and 30671370703.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144431 + ... + 286710.
It is an arithmetic number, because the mean of its divisors is an integer number (2684505663).
Almost surely, 230671370740 is an apocalyptic number.
It is an amenable number.
30671370740 is an abundant number, since it is smaller than the sum of its proper divisors (33756765172).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30671370740 is a wasteful number, since it uses less digits than its factorization.
30671370740 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 434707 (or 434705 counting only the distinct ones).
The product of its (nonzero) digits is 74088, while the sum is 38.
The spelling of 30671370740 in words is "thirty billion, six hundred seventy-one million, three hundred seventy thousand, seven hundred forty".
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