Base | Representation |
---|---|
bin | 11011111110110010… |
… | …101001101001111001 |
3 | 2212112212000110021222 |
4 | 123332302221221321 |
5 | 443012342310312 |
6 | 21445141441425 |
7 | 2112346663205 |
oct | 337662515171 |
9 | 85485013258 |
10 | 30044494457 |
11 | 1181837440a |
12 | 59a5a10275 |
13 | 2aaa673593 |
14 | 165030bb05 |
15 | bac9b7672 |
hex | 6feca9a79 |
30044494457 has 2 divisors, whose sum is σ = 30044494458. Its totient is φ = 30044494456.
The previous prime is 30044494433. The next prime is 30044494523. The reversal of 30044494457 is 75449444003.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 19016134201 + 11028360256 = 137899^2 + 105016^2 .
It is a cyclic number.
It is not a de Polignac number, because 30044494457 - 218 = 30044232313 is a prime.
It is not a weakly prime, because it can be changed into another prime (30044494057) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15022247228 + 15022247229.
It is an arithmetic number, because the mean of its divisors is an integer number (15022247229).
Almost surely, 230044494457 is an apocalyptic number.
It is an amenable number.
30044494457 is a deficient number, since it is larger than the sum of its proper divisors (1).
30044494457 is an equidigital number, since it uses as much as digits as its factorization.
30044494457 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 967680, while the sum is 44.
The spelling of 30044494457 in words is "thirty billion, forty-four million, four hundred ninety-four thousand, four hundred fifty-seven".
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