Base | Representation |
---|---|
bin | 1001101001110… |
… | …00100100000110 |
3 | 12122100210202101 |
4 | 10310320210012 |
5 | 131212101123 |
6 | 12011302314 |
7 | 2002152040 |
oct | 464704406 |
9 | 178323671 |
10 | 80972038 |
11 | 41785544 |
12 | 2314a99a |
13 | 13a10964 |
14 | aa7aa90 |
15 | 7196aad |
hex | 4d38906 |
80972038 has 16 divisors (see below), whose sum is σ = 140712480. Its totient is φ = 34226496.
The previous prime is 80972027. The next prime is 80972039. The reversal of 80972038 is 83027908.
It is a junction number, because it is equal to n+sod(n) for n = 80971988 and 80972006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80972039) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38593 + ... + 40636.
It is an arithmetic number, because the mean of its divisors is an integer number (8794530).
Almost surely, 280972038 is an apocalyptic number.
80972038 is a deficient number, since it is larger than the sum of its proper divisors (59740442).
80972038 is a wasteful number, since it uses less digits than its factorization.
80972038 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79311.
The product of its (nonzero) digits is 24192, while the sum is 37.
The square root of 80972038 is about 8998.4464214663. The cubic root of 80972038 is about 432.6250774824.
The spelling of 80972038 in words is "eighty million, nine hundred seventy-two thousand, thirty-eight".
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