Base | Representation |
---|---|
bin | 1001100011110… |
… | …11111001111000 |
3 | 12120220112202000 |
4 | 10301323321320 |
5 | 131012334123 |
6 | 11542541000 |
7 | 1662453111 |
oct | 461737170 |
9 | 176815660 |
10 | 80199288 |
11 | 412a7a04 |
12 | 22a37760 |
13 | 13800000 |
14 | a919208 |
15 | 7092b43 |
hex | 4c7be78 |
80199288 has 96 divisors (see below), whose sum is σ = 241340400. Its totient is φ = 24676704.
The previous prime is 80199283. The next prime is 80199293. The reversal of 80199288 is 88299108.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It is an interprime number because it is at equal distance from previous prime (80199283) and next prime (80199293).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80199281) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6169170 + ... + 6169182.
Almost surely, 280199288 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 80199288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120670200).
80199288 is an abundant number, since it is smaller than the sum of its proper divisors (161141112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80199288 is an frugal number, since it uses more digits than its factorization.
80199288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80 (or 18 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 45.
The square root of 80199288 is about 8955.4055184564. The cubic root of 80199288 is about 431.2444354670.
The spelling of 80199288 in words is "eighty million, one hundred ninety-nine thousand, two hundred eighty-eight".
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