Base | Representation |
---|---|
bin | 1001100100000… |
… | …11110110001111 |
3 | 12120222012101000 |
4 | 10302003312033 |
5 | 131014404243 |
6 | 11543351343 |
7 | 1662650010 |
oct | 462036617 |
9 | 176865330 |
10 | 80231823 |
11 | 4131a3a1 |
12 | 22a52553 |
13 | 13811a69 |
14 | a927007 |
15 | 709c5d3 |
hex | 4c83d8f |
80231823 has 32 divisors (see below), whose sum is σ = 143838720. Its totient is φ = 43148160.
The previous prime is 80231821. The next prime is 80231839. The reversal of 80231823 is 32813208.
It is not a de Polignac number, because 80231823 - 21 = 80231821 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80231821) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9273 + ... + 15698.
It is an arithmetic number, because the mean of its divisors is an integer number (4494960).
Almost surely, 280231823 is an apocalyptic number.
80231823 is a deficient number, since it is larger than the sum of its proper divisors (63606897).
80231823 is a wasteful number, since it uses less digits than its factorization.
80231823 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25004 (or 24998 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The square root of 80231823 is about 8957.2218349218. The cubic root of 80231823 is about 431.3027428875.
The spelling of 80231823 in words is "eighty million, two hundred thirty-one thousand, eight hundred twenty-three".
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