Base | Representation |
---|---|
bin | 11100101000000011… |
… | …011101111110110011 |
3 | 2221100002122122100220 |
4 | 130220003131332303 |
5 | 1000422103101242 |
6 | 22041551344123 |
7 | 2135454140163 |
oct | 345003357663 |
9 | 87302578326 |
10 | 30736768947 |
11 | 12043117495 |
12 | 5b59822043 |
13 | 2b8ac09461 |
14 | 16b82345a3 |
15 | bed660bec |
hex | 7280ddfb3 |
30736768947 has 16 divisors (see below), whose sum is σ = 41275866240. Its totient is φ = 20344784832.
The previous prime is 30736768921. The next prime is 30736768963. The reversal of 30736768947 is 74986763703.
It is not a de Polignac number, because 30736768947 - 210 = 30736767923 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30736768847) 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, 300783 + ... + 389799.
It is an arithmetic number, because the mean of its divisors is an integer number (2579741640).
Almost surely, 230736768947 is an apocalyptic number.
30736768947 is a deficient number, since it is larger than the sum of its proper divisors (10539097293).
30736768947 is a wasteful number, since it uses less digits than its factorization.
30736768947 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 89842.
The product of its (nonzero) digits is 32006016, while the sum is 60.
The spelling of 30736768947 in words is "thirty billion, seven hundred thirty-six million, seven hundred sixty-eight thousand, nine hundred forty-seven".
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