Base | Representation |
---|---|
bin | 1001101001011… |
… | …10100010110101 |
3 | 12122021201110100 |
4 | 10310232202311 |
5 | 131204242442 |
6 | 12010344313 |
7 | 2001621300 |
oct | 464564265 |
9 | 178251410 |
10 | 80930997 |
11 | 41757724 |
12 | 2312b099 |
13 | 139c8084 |
14 | aa69b37 |
15 | 718984c |
hex | 4d2e8b5 |
80930997 has 72 divisors (see below), whose sum is σ = 145117440. Its totient is φ = 43243200.
The previous prime is 80930981. The next prime is 80931001. The reversal of 80930997 is 79903908.
It is a happy number.
It is not a de Polignac number, because 80930997 - 24 = 80930981 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80930917) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 801247 + ... + 801347.
It is an arithmetic number, because the mean of its divisors is an integer number (2015520).
Almost surely, 280930997 is an apocalyptic number.
It is an amenable number.
80930997 is a deficient number, since it is larger than the sum of its proper divisors (64186443).
80930997 is a wasteful number, since it uses less digits than its factorization.
80930997 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 223 (or 213 counting only the distinct ones).
The product of its (nonzero) digits is 122472, while the sum is 45.
The square root of 80930997 is about 8996.1656832230. The cubic root of 80930997 is about 432.5519725486.
The spelling of 80930997 in words is "eighty million, nine hundred thirty thousand, nine hundred ninety-seven".
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