Base | Representation |
---|---|
bin | 1001101000101… |
… | …11110101001001 |
3 | 12122002222211120 |
4 | 10310113311021 |
5 | 131143303321 |
6 | 12004345453 |
7 | 2001053121 |
oct | 464276511 |
9 | 178088746 |
10 | 80837961 |
11 | 416a3836 |
12 | 230a5289 |
13 | 13994919 |
14 | aa43c81 |
15 | 716bec6 |
hex | 4d17d49 |
80837961 has 8 divisors (see below), whose sum is σ = 107889600. Its totient is φ = 53839152.
The previous prime is 80837947. The next prime is 80837963. The reversal of 80837961 is 16973808.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80837961 - 27 = 80837833 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80837963) 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, 9486 + ... + 15863.
It is an arithmetic number, because the mean of its divisors is an integer number (13486200).
Almost surely, 280837961 is an apocalyptic number.
It is an amenable number.
80837961 is a deficient number, since it is larger than the sum of its proper divisors (27051639).
80837961 is a wasteful number, since it uses less digits than its factorization.
80837961 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26415.
The product of its (nonzero) digits is 72576, while the sum is 42.
The square root of 80837961 is about 8990.9933266575. The cubic root of 80837961 is about 432.3861591299.
The spelling of 80837961 in words is "eighty million, eight hundred thirty-seven thousand, nine hundred sixty-one".
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