Base | Representation |
---|---|
bin | 111010111101101… |
… | …110000110001001 |
3 | 2112221110112000200 |
4 | 322331232012021 |
5 | 4011222224441 |
6 | 242055122413 |
7 | 33341361315 |
oct | 7275560611 |
9 | 2487415020 |
10 | 989258121 |
11 | 4684572a5 |
12 | 237373409 |
13 | 129c48a47 |
14 | 95552b45 |
15 | 5bcad7b6 |
hex | 3af6e189 |
989258121 has 24 divisors (see below), whose sum is σ = 1492058880. Its totient is φ = 630794976.
The previous prime is 989258111. The next prime is 989258141. The reversal of 989258121 is 121852989.
It is not a de Polignac number, because 989258121 - 26 = 989258057 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is not an unprimeable number, because it can be changed into a prime (989258111) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is an upside-down number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10216 + ... + 45638.
It is an arithmetic number, because the mean of its divisors is an integer number (62169120).
Almost surely, 2989258121 is an apocalyptic number.
It is an amenable number.
989258121 is a deficient number, since it is larger than the sum of its proper divisors (502800759).
989258121 is a wasteful number, since it uses less digits than its factorization.
989258121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35565 (or 35562 counting only the distinct ones).
The product of its digits is 103680, while the sum is 45.
The square root of 989258121 is about 31452.4740044404. The cubic root of 989258121 is about 996.4064757181.
The spelling of 989258121 in words is "nine hundred eighty-nine million, two hundred fifty-eight thousand, one hundred twenty-one".
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