Base | Representation |
---|---|
bin | 1001100101101… |
… | …00100100001011 |
3 | 12121100100002200 |
4 | 10302310210023 |
5 | 131042300441 |
6 | 11551531243 |
7 | 1664440536 |
oct | 462644413 |
9 | 177310080 |
10 | 80431371 |
11 | 41446309 |
12 | 22b29b23 |
13 | 13881837 |
14 | a979a1d |
15 | 70db7b6 |
hex | 4cb490b |
80431371 has 12 divisors (see below), whose sum is σ = 118881048. Its totient is φ = 52373664.
The previous prime is 80431343. The next prime is 80431397. The reversal of 80431371 is 17313408.
It is not a de Polignac number, because 80431371 - 25 = 80431339 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80431331) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103530 + ... + 104303.
It is an arithmetic number, because the mean of its divisors is an integer number (9906754).
Almost surely, 280431371 is an apocalyptic number.
80431371 is a deficient number, since it is larger than the sum of its proper divisors (38449677).
80431371 is a wasteful number, since it uses less digits than its factorization.
80431371 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 207882 (or 207879 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 27.
The square root of 80431371 is about 8968.3538623317. The cubic root of 80431371 is about 431.6600173557.
Adding to 80431371 its reverse (17313408), we get a palindrome (97744779).
The spelling of 80431371 in words is "eighty million, four hundred thirty-one thousand, three hundred seventy-one".
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