Base | Representation |
---|---|
bin | 1001100010111… |
… | …11000011110111 |
3 | 12120200112200021 |
4 | 10301133003313 |
5 | 131000044033 |
6 | 11540230011 |
7 | 1661451502 |
oct | 461370367 |
9 | 176615607 |
10 | 80081143 |
11 | 4122716a |
12 | 2299b307 |
13 | 1378b2bc |
14 | a8c8139 |
15 | 706cb2d |
hex | 4c5f0f7 |
80081143 has 8 divisors (see below), whose sum is σ = 84741120. Its totient is φ = 75465720.
The previous prime is 80081137. The next prime is 80081171. The reversal of 80081143 is 34118008.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80081143 - 29 = 80080631 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 (80081173) 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, 7405 + ... + 14662.
It is an arithmetic number, because the mean of its divisors is an integer number (10592640).
Almost surely, 280081143 is an apocalyptic number.
80081143 is a deficient number, since it is larger than the sum of its proper divisors (4659977).
80081143 is a wasteful number, since it uses less digits than its factorization.
80081143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22277.
The product of its (nonzero) digits is 768, while the sum is 25.
The square root of 80081143 is about 8948.8067919695. The cubic root of 80081143 is about 431.0325698583.
The spelling of 80081143 in words is "eighty million, eighty-one thousand, one hundred forty-three".
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