Base | Representation |
---|---|
bin | 1001101001000… |
… | …00100010000101 |
3 | 12122011210201201 |
4 | 10310200202011 |
5 | 131200423410 |
6 | 12005222501 |
7 | 2001262051 |
oct | 464404205 |
9 | 178153651 |
10 | 80873605 |
11 | 4171859a |
12 | 23101a31 |
13 | 139a7c07 |
14 | aa52c61 |
15 | 717783a |
hex | 4d20885 |
80873605 has 16 divisors (see below), whose sum is σ = 102539520. Its totient is φ = 61133632.
The previous prime is 80873603. The next prime is 80873609. The reversal of 80873605 is 50637808.
It is a cyclic number.
It is not a de Polignac number, because 80873605 - 21 = 80873603 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80873603) 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, 882 + ... + 12748.
It is an arithmetic number, because the mean of its divisors is an integer number (6408720).
Almost surely, 280873605 is an apocalyptic number.
It is an amenable number.
80873605 is a deficient number, since it is larger than the sum of its proper divisors (21665915).
80873605 is a wasteful number, since it uses less digits than its factorization.
80873605 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11948.
The product of its (nonzero) digits is 40320, while the sum is 37.
The square root of 80873605 is about 8992.9753140993. The cubic root of 80873605 is about 432.4497006781.
The spelling of 80873605 in words is "eighty million, eight hundred seventy-three thousand, six hundred five".
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