Base | Representation |
---|---|
bin | 100011101111110111… |
… | …101011111001111011 |
3 | 10200002001102211201122 |
4 | 203233313223321323 |
5 | 1112102311400442 |
6 | 25344452135455 |
7 | 2526123250052 |
oct | 435767537173 |
9 | 120061384648 |
10 | 38384090747 |
11 | 15307900552 |
12 | 753290758b |
13 | 3809369342 |
14 | 1c01b35399 |
15 | ee9be3dd2 |
hex | 8efdebe7b |
38384090747 has 12 divisors (see below), whose sum is σ = 41135669256. Its totient is φ = 35806471680.
The previous prime is 38384090687. The next prime is 38384090749. The reversal of 38384090747 is 74709048383.
It is not a de Polignac number, because 38384090747 - 212 = 38384086651 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38384090749) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555029 + ... + 620342.
It is an arithmetic number, because the mean of its divisors is an integer number (3427972438).
Almost surely, 238384090747 is an apocalyptic number.
38384090747 is a deficient number, since it is larger than the sum of its proper divisors (2751578509).
38384090747 is a wasteful number, since it uses less digits than its factorization.
38384090747 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1175518 (or 1175501 counting only the distinct ones).
The product of its (nonzero) digits is 4064256, while the sum is 53.
The spelling of 38384090747 in words is "thirty-eight billion, three hundred eighty-four million, ninety thousand, seven hundred forty-seven".
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