Base | Representation |
---|---|
bin | 11100001010000111… |
… | …010011011100110001 |
3 | 2220001002110121011020 |
4 | 130022013103130301 |
5 | 443410010123110 |
6 | 21520045210053 |
7 | 2120144436411 |
oct | 341207233461 |
9 | 86032417136 |
10 | 30234457905 |
11 | 119056217a3 |
12 | 5a39560929 |
13 | 2b0ab254a2 |
14 | 166b63a641 |
15 | bbe4dcd70 |
hex | 70a1d3731 |
30234457905 has 16 divisors (see below), whose sum is σ = 48683258304. Its totient is φ = 16022335680.
The previous prime is 30234457853. The next prime is 30234457931. The reversal of 30234457905 is 50975443203.
It is not a de Polignac number, because 30234457905 - 217 = 30234326833 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6416851 + ... + 6421560.
It is an arithmetic number, because the mean of its divisors is an integer number (3042703644).
Almost surely, 230234457905 is an apocalyptic number.
It is an amenable number.
30234457905 is a deficient number, since it is larger than the sum of its proper divisors (18448800399).
30234457905 is a wasteful number, since it uses less digits than its factorization.
30234457905 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12838576.
The product of its (nonzero) digits is 453600, while the sum is 42.
The spelling of 30234457905 in words is "thirty billion, two hundred thirty-four million, four hundred fifty-seven thousand, nine hundred five".
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