Base | Representation |
---|---|
bin | 1001100101010… |
… | …11100010001100 |
3 | 12121021110100122 |
4 | 10302223202030 |
5 | 131040110010 |
6 | 11551044112 |
7 | 1664224643 |
oct | 462534214 |
9 | 177243318 |
10 | 80394380 |
11 | 41420540 |
12 | 22b10638 |
13 | 1386aa51 |
14 | a96a35a |
15 | 70d0855 |
hex | 4cab88c |
80394380 has 48 divisors (see below), whose sum is σ = 190542240. Its totient is φ = 28224000.
The previous prime is 80394373. The next prime is 80394421. The reversal of 80394380 is 8349308.
It is a self number, because there is not a number n which added to its sum of digits gives 80394380.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80 + ... + 12680.
It is an arithmetic number, because the mean of its divisors is an integer number (3969630).
Almost surely, 280394380 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80394380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95271120).
80394380 is an abundant number, since it is smaller than the sum of its proper divisors (110147860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80394380 is a wasteful number, since it uses less digits than its factorization.
80394380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12650 (or 12648 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 35.
The square root of 80394380 is about 8966.2913180423. The cubic root of 80394380 is about 431.5938326321.
The spelling of 80394380 in words is "eighty million, three hundred ninety-four thousand, three hundred eighty".
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