Base | Representation |
---|---|
bin | 11100001010010111… |
… | …101111100000101011 |
3 | 2220001101120112022210 |
4 | 130022113233200223 |
5 | 443412111022042 |
6 | 21520321420203 |
7 | 2120226164661 |
oct | 341227574053 |
9 | 86041515283 |
10 | 30238767147 |
11 | 11907aa5356 |
12 | 5a3aa9a663 |
13 | 2b0b9a3a34 |
14 | 166c03cc31 |
15 | bbea8ea9c |
hex | 70a5ef82b |
30238767147 has 4 divisors (see below), whose sum is σ = 40318356200. Its totient is φ = 20159178096.
The previous prime is 30238767127. The next prime is 30238767173. The reversal of 30238767147 is 74176783203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74176783203 = 3 ⋅24725594401.
It is not a de Polignac number, because 30238767147 - 231 = 28091283499 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30238767096 and 30238767105.
It is not an unprimeable number, because it can be changed into a prime (30238767127) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5039794522 + ... + 5039794527.
It is an arithmetic number, because the mean of its divisors is an integer number (10079589050).
Almost surely, 230238767147 is an apocalyptic number.
30238767147 is a deficient number, since it is larger than the sum of its proper divisors (10079589053).
30238767147 is a wasteful number, since it uses less digits than its factorization.
30238767147 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10079589052.
The product of its (nonzero) digits is 1185408, while the sum is 48.
The spelling of 30238767147 in words is "thirty billion, two hundred thirty-eight million, seven hundred sixty-seven thousand, one hundred forty-seven".
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