Base | Representation |
---|---|
bin | 101111101100000… |
… | …100000101011100 |
3 | 2001202111021201202 |
4 | 233230010011130 |
5 | 3114310031340 |
6 | 211220255032 |
7 | 25553366252 |
oct | 5754040534 |
9 | 2052437652 |
10 | 800080220 |
11 | 380696125 |
12 | 1a3b41478 |
13 | c99b0564 |
14 | 7838a5d2 |
15 | 4a390c15 |
hex | 2fb0415c |
800080220 has 12 divisors (see below), whose sum is σ = 1680168504. Its totient is φ = 320032080.
The previous prime is 800080199. The next prime is 800080223. The reversal of 800080220 is 22080008.
It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 40004011 = 800080220 / (8 + 0 + 0 + 0 + 8 + 0 + 2 + 2 + 0).
It is a junction number, because it is equal to n+sod(n) for n = 800080192 and 800080201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (800080223) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20001986 + ... + 20002025.
It is an arithmetic number, because the mean of its divisors is an integer number (140014042).
Almost surely, 2800080220 is an apocalyptic number.
It is an amenable number.
800080220 is an abundant number, since it is smaller than the sum of its proper divisors (880088284).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
800080220 is a wasteful number, since it uses less digits than its factorization.
800080220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40004020 (or 40004018 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 20.
The square root of 800080220 is about 28285.6893145633. The cubic root of 800080220 is about 928.3487947068.
The spelling of 800080220 in words is "eight hundred million, eighty thousand, two hundred twenty".
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