Base | Representation |
---|---|
bin | 1001100110011… |
… | …11010011100101 |
3 | 12121112220100100 |
4 | 10303033103211 |
5 | 131104302101 |
6 | 11554134313 |
7 | 1665405060 |
oct | 463172345 |
9 | 177486310 |
10 | 80540901 |
11 | 41510631 |
12 | 22b81399 |
13 | 138bc64c |
14 | a9a78d7 |
15 | 710de86 |
hex | 4ccf4e5 |
80540901 has 24 divisors (see below), whose sum is σ = 134947904. Its totient is φ = 45334080.
The previous prime is 80540899. The next prime is 80540969. The reversal of 80540901 is 10904508.
It is not a de Polignac number, because 80540901 - 21 = 80540899 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80540701) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5320 + ... + 13761.
Almost surely, 280540901 is an apocalyptic number.
It is an amenable number.
80540901 is a deficient number, since it is larger than the sum of its proper divisors (54407003).
80540901 is a wasteful number, since it uses less digits than its factorization.
80540901 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19161 (or 19158 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 27.
The square root of 80540901 is about 8974.4582566303. The cubic root of 80540901 is about 431.8558707720.
It can be divided in two parts, 8054090 and 1, that added together give a triangular number (8054091 = T4013).
The spelling of 80540901 in words is "eighty million, five hundred forty thousand, nine hundred one".
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