Base | Representation |
---|---|
bin | 1001100010111… |
… | …01101110101000 |
3 | 12120200021012020 |
4 | 10301131232220 |
5 | 130444410223 |
6 | 11540144440 |
7 | 1661426550 |
oct | 461355650 |
9 | 176607166 |
10 | 80075688 |
11 | 41223060 |
12 | 22998120 |
13 | 13788984 |
14 | a8c6160 |
15 | 706b1e3 |
hex | 4c5dba8 |
80075688 has 64 divisors (see below), whose sum is σ = 249592320. Its totient is φ = 20798400.
The previous prime is 80075687. The next prime is 80075693. The reversal of 80075688 is 88657008.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is not an unprimeable number, because it can be changed into a prime (80075687) 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, 19818 + ... + 23513.
It is an arithmetic number, because the mean of its divisors is an integer number (3899880).
Almost surely, 280075688 is an apocalyptic number.
80075688 is a gapful number since it is divisible by the number (88) formed by its first and last digit.
It is an amenable number.
80075688 is an abundant number, since it is smaller than the sum of its proper divisors (169516632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80075688 is a wasteful number, since it uses less digits than its factorization.
80075688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43358 (or 43354 counting only the distinct ones).
The product of its (nonzero) digits is 107520, while the sum is 42.
The square root of 80075688 is about 8948.5019975413. The cubic root of 80075688 is about 431.0227825519.
It can be divided in two parts, 8007 and 5688, that added together give a triangular number (13695 = T165).
The spelling of 80075688 in words is "eighty million, seventy-five thousand, six hundred eighty-eight".
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