Base | Representation |
---|---|
bin | 10000110001101110… |
… | …101000001011101100 |
3 | 1201111102211221210222 |
4 | 100301232220023230 |
5 | 243343112112410 |
6 | 12135310150512 |
7 | 1205256653333 |
oct | 206156501354 |
9 | 51442757728 |
10 | 18014175980 |
11 | 7704595049 |
12 | 35a8ab2438 |
13 | 1911154b38 |
14 | c2c67ad1a |
15 | 706758955 |
hex | 431ba82ec |
18014175980 has 72 divisors (see below), whose sum is σ = 38911102272. Its totient is φ = 7002198016.
The previous prime is 18014175901. The next prime is 18014175997. The reversal of 18014175980 is 8957141081.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51031484 + ... + 51031836.
It is an arithmetic number, because the mean of its divisors is an integer number (540431976).
Almost surely, 218014175980 is an apocalyptic number.
18014175980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18014175980 is an abundant number, since it is smaller than the sum of its proper divisors (20896926292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18014175980 is a wasteful number, since it uses less digits than its factorization.
18014175980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 875 (or 640 counting only the distinct ones).
The product of its (nonzero) digits is 80640, while the sum is 44.
The spelling of 18014175980 in words is "eighteen billion, fourteen million, one hundred seventy-five thousand, nine hundred eighty".
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