Base | Representation |
---|---|
bin | 111010100000000… |
… | …101100110100000 |
3 | 2112101211212021110 |
4 | 322200011212200 |
5 | 4002230140310 |
6 | 241220423320 |
7 | 33215346054 |
oct | 7240054640 |
9 | 2471755243 |
10 | 981490080 |
11 | 46403102a |
12 | 234847b40 |
13 | 12845907c |
14 | 944cdc64 |
15 | 5b276d20 |
hex | 3a8059a0 |
981490080 has 96 divisors (see below), whose sum is σ = 3096878400. Its totient is φ = 261292032.
The previous prime is 981490079. The next prime is 981490091. The reversal of 981490080 is 80094189.
It is a tau number, because it is divible by the number of its divisors (96).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367791 + ... + 370449.
It is an arithmetic number, because the mean of its divisors is an integer number (32259150).
Almost surely, 2981490080 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 981490080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548439200).
981490080 is an abundant number, since it is smaller than the sum of its proper divisors (2115388320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
981490080 is a wasteful number, since it uses less digits than its factorization.
981490080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3446 (or 3438 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 39.
The square root of 981490080 is about 31328.7420749701. The cubic root of 981490080 is about 993.7915617284.
The spelling of 981490080 in words is "nine hundred eighty-one million, four hundred ninety thousand, eighty".
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