Base | Representation |
---|---|
bin | 1001100010100… |
… | …10000101010100 |
3 | 12120120211202120 |
4 | 10301102011110 |
5 | 130441343423 |
6 | 11535135540 |
7 | 1661140515 |
oct | 461220524 |
9 | 176524676 |
10 | 80027988 |
11 | 411a0237 |
12 | 229745b0 |
13 | 13770051 |
14 | a8b2a0c |
15 | 705bee3 |
hex | 4c52154 |
80027988 has 48 divisors (see below), whose sum is σ = 197277696. Its totient is φ = 25210080.
The previous prime is 80027977. The next prime is 80027989. The reversal of 80027988 is 88972008.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80027989) 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, 13495 + ... + 18497.
It is an arithmetic number, because the mean of its divisors is an integer number (4109952).
Almost surely, 280027988 is an apocalyptic number.
It is an amenable number.
80027988 is an abundant number, since it is smaller than the sum of its proper divisors (117249708).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80027988 is a wasteful number, since it uses less digits than its factorization.
80027988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5084 (or 5082 counting only the distinct ones).
The product of its (nonzero) digits is 64512, while the sum is 42.
The square root of 80027988 is about 8945.8363499452. The cubic root of 80027988 is about 430.9371807461.
The spelling of 80027988 in words is "eighty million, twenty-seven thousand, nine hundred eighty-eight".
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