Base | Representation |
---|---|
bin | 1001100010111… |
… | …11000010101111 |
3 | 12120200112120121 |
4 | 10301133002233 |
5 | 131000043241 |
6 | 11540225411 |
7 | 1661451340 |
oct | 461370257 |
9 | 176615517 |
10 | 80081071 |
11 | 41227104 |
12 | 2299b267 |
13 | 1378b265 |
14 | a8c80c7 |
15 | 706cad1 |
hex | 4c5f0af |
80081071 has 8 divisors (see below), whose sum is σ = 91922720. Its totient is φ = 68339808.
The previous prime is 80081069. The next prime is 80081083. The reversal of 80081071 is 17018008.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80081071 - 21 = 80081069 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80081171) 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, 23376 + ... + 26581.
It is an arithmetic number, because the mean of its divisors is an integer number (11490340).
Almost surely, 280081071 is an apocalyptic number.
80081071 is a deficient number, since it is larger than the sum of its proper divisors (11841649).
80081071 is a wasteful number, since it uses less digits than its factorization.
80081071 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50193.
The product of its (nonzero) digits is 448, while the sum is 25.
The square root of 80081071 is about 8948.8027690859. The cubic root of 80081071 is about 431.0324406795.
Adding to 80081071 its reverse (17018008), we get a palindrome (97099079).
The spelling of 80081071 in words is "eighty million, eighty-one thousand, seventy-one".
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