Base | Representation |
---|---|
bin | 1001101000100… |
… | …10001101101011 |
3 | 12122001211021111 |
4 | 10310102031223 |
5 | 131142034310 |
6 | 12004051151 |
7 | 2000626054 |
oct | 464221553 |
9 | 178054244 |
10 | 80814955 |
11 | 41688521 |
12 | 23093ab7 |
13 | 13987300 |
14 | aa3972b |
15 | 716528a |
hex | 4d1236b |
80814955 has 24 divisors (see below), whose sum is σ = 106857360. Its totient is φ = 58631040.
The previous prime is 80814953. The next prime is 80814971. The reversal of 80814955 is 55941808.
It is not a de Polignac number, because 80814955 - 21 = 80814953 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80814953) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49045 + ... + 50665.
It is an arithmetic number, because the mean of its divisors is an integer number (4452390).
Almost surely, 280814955 is an apocalyptic number.
80814955 is a deficient number, since it is larger than the sum of its proper divisors (26042405).
80814955 is a wasteful number, since it uses less digits than its factorization.
80814955 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1711 (or 1698 counting only the distinct ones).
The product of its (nonzero) digits is 57600, while the sum is 40.
The square root of 80814955 is about 8989.7138441666. The cubic root of 80814955 is about 432.3451370669.
The spelling of 80814955 in words is "eighty million, eight hundred fourteen thousand, nine hundred fifty-five".
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