Base | Representation |
---|---|
bin | 1001100011110… |
… | …10011111010001 |
3 | 12120220020210020 |
4 | 10301322133101 |
5 | 131012142424 |
6 | 11542454053 |
7 | 1662430155 |
oct | 461723721 |
9 | 176806706 |
10 | 80193489 |
11 | 412a3612 |
12 | 22a34329 |
13 | 137ca48c |
14 | a917065 |
15 | 7091079 |
hex | 4c7a7d1 |
80193489 has 8 divisors (see below), whose sum is σ = 108027360. Its totient is φ = 52910976.
The previous prime is 80193469. The next prime is 80193523. The reversal of 80193489 is 98439108.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80193489 - 213 = 80185297 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 80193489.
It is not an unprimeable number, because it can be changed into a prime (80193469) 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, 137499 + ... + 138080.
It is an arithmetic number, because the mean of its divisors is an integer number (13503420).
Almost surely, 280193489 is an apocalyptic number.
It is an amenable number.
80193489 is a deficient number, since it is larger than the sum of its proper divisors (27833871).
80193489 is a wasteful number, since it uses less digits than its factorization.
80193489 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 275679.
The product of its (nonzero) digits is 62208, while the sum is 42.
The square root of 80193489 is about 8955.0817416705. The cubic root of 80193489 is about 431.2340411654.
The spelling of 80193489 in words is "eighty million, one hundred ninety-three thousand, four hundred eighty-nine".
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