Base | Representation |
---|---|
bin | 111011110100110010… |
… | …1101010111010100000 |
3 | 110021121111122112010112 |
4 | 1313221211222322200 |
5 | 4101103043034031 |
6 | 135004130350452 |
7 | 12165452430560 |
oct | 1675145527240 |
9 | 407544575115 |
10 | 128473018016 |
11 | 4a53773aa52 |
12 | 20a9542b428 |
13 | c1657261b5 |
14 | 630a780da0 |
15 | 351dc8962b |
hex | 1de996aea0 |
128473018016 has 96 divisors (see below), whose sum is σ = 301948674048. Its totient is φ = 52610722560.
The previous prime is 128473018013. The next prime is 128473018087. The reversal of 128473018016 is 610810374821.
It is not an unprimeable number, because it can be changed into a prime (128473018013) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5093051 + ... + 5118213.
It is an arithmetic number, because the mean of its divisors is an integer number (3145298688).
Almost surely, 2128473018016 is an apocalyptic number.
128473018016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 128473018016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150974337024).
128473018016 is an abundant number, since it is smaller than the sum of its proper divisors (173475656032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128473018016 is a wasteful number, since it uses less digits than its factorization.
128473018016 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26194 (or 26186 counting only the distinct ones).
The product of its (nonzero) digits is 64512, while the sum is 41.
The spelling of 128473018016 in words is "one hundred twenty-eight billion, four hundred seventy-three million, eighteen thousand, sixteen".
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