Base | Representation |
---|---|
bin | 1001100011110… |
… | …10110110101000 |
3 | 12120220022211121 |
4 | 10301322312220 |
5 | 131012214414 |
6 | 11542505024 |
7 | 1662434422 |
oct | 461726650 |
9 | 176808747 |
10 | 80194984 |
11 | 412a4751 |
12 | 22a35174 |
13 | 137cb06c |
14 | a917812 |
15 | 7091724 |
hex | 4c7ada8 |
80194984 has 32 divisors (see below), whose sum is σ = 163523880. Its totient is φ = 36716544.
The previous prime is 80194969. The next prime is 80194987. The reversal of 80194984 is 48949108.
It can be written as a sum of positive squares in 4 ways, for example, as 79602084 + 592900 = 8922^2 + 770^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 80194984.
It is not an unprimeable number, because it can be changed into a prime (80194987) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2937 + ... + 13000.
Almost surely, 280194984 is an apocalyptic number.
It is an amenable number.
80194984 is an abundant number, since it is smaller than the sum of its proper divisors (83328896).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80194984 is a wasteful number, since it uses less digits than its factorization.
80194984 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15997 (or 15993 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 43.
The square root of 80194984 is about 8955.1652134397. The cubic root of 80194984 is about 431.2367208962.
The spelling of 80194984 in words is "eighty million, one hundred ninety-four thousand, nine hundred eighty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •