Base | Representation |
---|---|
bin | 11100011101011010… |
… | …110011111110000001 |
3 | 2220212122220110102022 |
4 | 130131122303332001 |
5 | 1000040413321240 |
6 | 22012135131225 |
7 | 2131156411121 |
oct | 343532637601 |
9 | 86778813368 |
10 | 30558338945 |
11 | 11a61427382 |
12 | 5b09b13b15 |
13 | 2b5cc65084 |
14 | 169c668c81 |
15 | bdcb679b5 |
hex | 71d6b3f81 |
30558338945 has 4 divisors (see below), whose sum is σ = 36670006740. Its totient is φ = 24446671152.
The previous prime is 30558338929. The next prime is 30558338957. The reversal of 30558338945 is 54983385503.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54983385503 = 41 ⋅1341058183.
It can be written as a sum of positive squares in 2 ways, for example, as 22948917121 + 7609421824 = 151489^2 + 87232^2 .
It is a cyclic number.
It is not a de Polignac number, because 30558338945 - 24 = 30558338929 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055833890 + ... + 3055833899.
It is an arithmetic number, because the mean of its divisors is an integer number (9167501685).
Almost surely, 230558338945 is an apocalyptic number.
It is an amenable number.
30558338945 is a deficient number, since it is larger than the sum of its proper divisors (6111667795).
30558338945 is an equidigital number, since it uses as much as digits as its factorization.
30558338945 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6111667794.
The product of its (nonzero) digits is 7776000, while the sum is 53.
The spelling of 30558338945 in words is "thirty billion, five hundred fifty-eight million, three hundred thirty-eight thousand, nine hundred forty-five".
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