Base | Representation |
---|---|
bin | 10111101111001… |
… | …100110001011001 |
3 | 1000202101010222210 |
4 | 113233030301121 |
5 | 1303422432144 |
6 | 103303505333 |
7 | 12604026642 |
oct | 2757146131 |
9 | 1022333883 |
10 | 398249049 |
11 | 19488a450 |
12 | b1458249 |
13 | 6467a633 |
14 | 3ac6a6c9 |
15 | 24e69ab9 |
hex | 17bccc59 |
398249049 has 32 divisors (see below), whose sum is σ = 595900800. Its totient is φ = 234524160.
The previous prime is 398249041. The next prime is 398249057. The reversal of 398249049 is 940942893.
It is an interprime number because it is at equal distance from previous prime (398249041) and next prime (398249057).
It is not a de Polignac number, because 398249049 - 23 = 398249041 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 398248989 and 398249007.
It is not an unprimeable number, because it can be changed into a prime (398249041) 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 in 31 ways as a sum of consecutive naturals, for example, 189597 + ... + 191685.
It is an arithmetic number, because the mean of its divisors is an integer number (18621900).
Almost surely, 2398249049 is an apocalyptic number.
It is an amenable number.
398249049 is a deficient number, since it is larger than the sum of its proper divisors (197651751).
398249049 is a wasteful number, since it uses less digits than its factorization.
398249049 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2265.
The product of its (nonzero) digits is 559872, while the sum is 48.
The square root of 398249049 is about 19956.1782162818. The cubic root of 398249049 is about 735.7296340998.
The spelling of 398249049 in words is "three hundred ninety-eight million, two hundred forty-nine thousand, forty-nine".
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