Base | Representation |
---|---|
bin | 1001100010011… |
… | …01111111001100 |
3 | 12120112222202020 |
4 | 10301031333030 |
5 | 130440324322 |
6 | 11534530140 |
7 | 1661040561 |
oct | 461157714 |
9 | 176488666 |
10 | 80011212 |
11 | 41189676 |
12 | 22966950 |
13 | 13765518 |
14 | a8aa868 |
15 | 705705c |
hex | 4c4dfcc |
80011212 has 48 divisors (see below), whose sum is σ = 190831200. Its totient is φ = 26085888.
The previous prime is 80011207. The next prime is 80011219. The reversal of 80011212 is 21211008.
It is a junction number, because it is equal to n+sod(n) for n = 80011191 and 80011200.
It is not an unprimeable number, because it can be changed into a prime (80011219) 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, 130218 + ... + 130830.
It is an arithmetic number, because the mean of its divisors is an integer number (3975650).
Almost surely, 280011212 is an apocalyptic number.
It is an amenable number.
80011212 is an abundant number, since it is smaller than the sum of its proper divisors (110819988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80011212 is a wasteful number, since it uses less digits than its factorization.
80011212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 842 (or 840 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
The square root of 80011212 is about 8944.8986578943. The cubic root of 80011212 is about 430.9070666675.
The spelling of 80011212 in words is "eighty million, eleven thousand, two hundred twelve".
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