Base | Representation |
---|---|
bin | 111011011111001… |
… | …000010111001001 |
3 | 2120112221111012111 |
4 | 323133020113021 |
5 | 4020443011312 |
6 | 243010542321 |
7 | 33505666654 |
oct | 7337102711 |
9 | 2515844174 |
10 | 998016457 |
11 | 472399599 |
12 | 23a2979a1 |
13 | 12b9c43a9 |
14 | 9679289b |
15 | 5c93d8a7 |
hex | 3b7c85c9 |
998016457 has 2 divisors, whose sum is σ = 998016458. Its totient is φ = 998016456.
The previous prime is 998016431. The next prime is 998016473. The reversal of 998016457 is 754610899.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 566249616 + 431766841 = 23796^2 + 20779^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-998016457 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 998016457.
It is not a weakly prime, because it can be changed into another prime (998016757) by changing a digit.
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 as a sum of consecutive naturals, namely, 499008228 + 499008229.
It is an arithmetic number, because the mean of its divisors is an integer number (499008229).
Almost surely, 2998016457 is an apocalyptic number.
It is an amenable number.
998016457 is a deficient number, since it is larger than the sum of its proper divisors (1).
998016457 is an equidigital number, since it uses as much as digits as its factorization.
998016457 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 544320, while the sum is 49.
The square root of 998016457 is about 31591.3984654051. The cubic root of 998016457 is about 999.3383813573.
The spelling of 998016457 in words is "nine hundred ninety-eight million, sixteen thousand, four hundred fifty-seven".
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