Base | Representation |
---|---|
bin | 1001100111101… |
… | …01000001000000 |
3 | 12121211202020001 |
4 | 10303311001000 |
5 | 131124222420 |
6 | 12001325344 |
7 | 1666620304 |
oct | 463650100 |
9 | 177752201 |
10 | 80695360 |
11 | 41606689 |
12 | 23036854 |
13 | 13944a45 |
14 | aa07d04 |
15 | 713eb0a |
hex | 4cf5040 |
80695360 has 28 divisors (see below), whose sum is σ = 192156588. Its totient is φ = 32278016.
The previous prime is 80695357. The next prime is 80695361. The reversal of 80695360 is 6359608.
It can be written as a sum of positive squares in 2 ways, for example, as 62853184 + 17842176 = 7928^2 + 4224^2 .
It is a super-2 number, since 2×806953602 = 13023482251059200, which contains 22 as substring.
It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (80695361) 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, 125767 + ... + 126406.
Almost surely, 280695360 is an apocalyptic number.
80695360 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80695360 is an abundant number, since it is smaller than the sum of its proper divisors (111461228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80695360 is a wasteful number, since it uses less digits than its factorization.
80695360 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 252190 (or 252180 counting only the distinct ones).
The product of its (nonzero) digits is 38880, while the sum is 37.
The square root of 80695360 is about 8983.0596124038. The cubic root of 80695360 is about 432.1317613629.
The spelling of 80695360 in words is "eighty million, six hundred ninety-five thousand, three hundred sixty".
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