Base | Representation |
---|---|
bin | 11100000011111101… |
… | …101110111011010101 |
3 | 2212202220022220112002 |
4 | 130003331232323111 |
5 | 443202102120332 |
6 | 21501522005045 |
7 | 2114452463021 |
oct | 340375567325 |
9 | 85686286462 |
10 | 30131285717 |
11 | 11862363a25 |
12 | 5a0aaa6785 |
13 | 2ac2640b60 |
14 | 165ba61381 |
15 | bb540d562 |
hex | 703f6eed5 |
30131285717 has 16 divisors (see below), whose sum is σ = 34216902720. Its totient is φ = 26303356800.
The previous prime is 30131285689. The next prime is 30131285731. The reversal of 30131285717 is 71758213103.
It is not a de Polignac number, because 30131285717 - 220 = 30130237141 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30131281717) 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, 34217 + ... + 247857.
It is an arithmetic number, because the mean of its divisors is an integer number (2138556420).
Almost surely, 230131285717 is an apocalyptic number.
It is an amenable number.
30131285717 is a deficient number, since it is larger than the sum of its proper divisors (4085617003).
30131285717 is a wasteful number, since it uses less digits than its factorization.
30131285717 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 214244.
The product of its (nonzero) digits is 35280, while the sum is 38.
The spelling of 30131285717 in words is "thirty billion, one hundred thirty-one million, two hundred eighty-five thousand, seven hundred seventeen".
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