Base | Representation |
---|---|
bin | 1110000100010011101101000… |
… | …1101010000000110011101110 |
3 | 11210210221102022121121020200110 |
4 | 3201010323101222000303232 |
5 | 2014222001112403231430 |
6 | 13425201152405240450 |
7 | 415335561530045613 |
oct | 34104732152006356 |
9 | 4723842277536613 |
10 | 989898989898990 |
11 | 2674598932036a6 |
12 | 93035080a03126 |
13 | 336470c7056a12 |
14 | 1366351c50a50a |
15 | 79698276447b0 |
hex | 3844ed1a80cee |
989898989898990 has 16 divisors (see below), whose sum is σ = 2375757575757648. Its totient is φ = 263973063973056.
The previous prime is 989898989898977. The next prime is 989898989899031. The reversal of 989898989898990 is 99898989898989.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16498316498287 + ... + 16498316498346.
It is an arithmetic number, because the mean of its divisors is an integer number (148484848484853).
Almost surely, 2989898989898990 is an apocalyptic number.
989898989898990 is an abundant number, since it is smaller than the sum of its proper divisors (1385858585858658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
989898989898990 is a wasteful number, since it uses less digits than its factorization.
989898989898990 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32996632996643.
The product of its (nonzero) digits is 11284439629824, while the sum is 120.
The spelling of 989898989898990 in words is "nine hundred eighty-nine trillion, eight hundred ninety-eight billion, nine hundred eighty-nine million, eight hundred ninety-eight thousand, nine hundred ninety".
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