Base | Representation |
---|---|
bin | 111011111011111111… |
… | …0101000100001111001 |
3 | 110022020022221011202220 |
4 | 1313313332220201321 |
5 | 4102101344132443 |
6 | 135044113114253 |
7 | 12204443466252 |
oct | 1676776504171 |
9 | 408208834686 |
10 | 128714442873 |
11 | 4a650a47025 |
12 | 20b42258989 |
13 | c1a3755743 |
14 | 6330867b29 |
15 | 3535077a83 |
hex | 1df7fa8879 |
128714442873 has 8 divisors (see below), whose sum is σ = 171625214688. Its totient is φ = 85806649824.
The previous prime is 128714442841. The next prime is 128714442947. The reversal of 128714442873 is 378244417821.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 128714442873 - 25 = 128714442841 is a prime.
It is not an unprimeable number, because it can be changed into a prime (128714442823) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641836 + ... + 818157.
It is an arithmetic number, because the mean of its divisors is an integer number (21453151836).
Almost surely, 2128714442873 is an apocalyptic number.
It is an amenable number.
128714442873 is a deficient number, since it is larger than the sum of its proper divisors (42910771815).
128714442873 is a wasteful number, since it uses less digits than its factorization.
128714442873 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1489383.
The product of its digits is 2408448, while the sum is 51.
The spelling of 128714442873 in words is "one hundred twenty-eight billion, seven hundred fourteen million, four hundred forty-two thousand, eight hundred seventy-three".
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