Base | Representation |
---|---|
bin | 11110010000100010110001 |
3 | 112220222202210 |
4 | 132100202301 |
5 | 4012311311 |
6 | 442002333 |
7 | 124264413 |
oct | 36204261 |
9 | 15828683 |
10 | 7932081 |
11 | 4528543 |
12 | 27a63a9 |
13 | 1849551 |
14 | 10a69b3 |
15 | a6a3a6 |
hex | 7908b1 |
7932081 has 16 divisors (see below), whose sum is σ = 11461824. Its totient is φ = 4859904.
The previous prime is 7932053. The next prime is 7932083. The reversal of 7932081 is 1802397.
It is a happy number.
It is not a de Polignac number, because 7932081 - 27 = 7931953 is a prime.
It is a super-2 number, since 2×79320812 = 125835817981122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7932083) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385 + ... + 4001.
It is an arithmetic number, because the mean of its divisors is an integer number (716364).
Almost surely, 27932081 is an apocalyptic number.
It is an amenable number.
7932081 is a deficient number, since it is larger than the sum of its proper divisors (3529743).
7932081 is a wasteful number, since it uses less digits than its factorization.
7932081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3680.
The product of its (nonzero) digits is 3024, while the sum is 30.
The square root of 7932081 is about 2816.3950362121. The cubic root of 7932081 is about 199.4323990027.
It can be divided in two parts, 79320 and 81, that added together give a triangular number (79401 = T398).
The spelling of 7932081 in words is "seven million, nine hundred thirty-two thousand, eighty-one".
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