Base | Representation |
---|---|
bin | 1001100011010… |
… | …10101111000000 |
3 | 12120202222021021 |
4 | 10301222233000 |
5 | 131003111320 |
6 | 11541235224 |
7 | 1662041062 |
oct | 461525700 |
9 | 176688237 |
10 | 80128960 |
11 | 4125a08a |
12 | 22a02b14 |
13 | 137a6cb2 |
14 | a8db732 |
15 | 707bdaa |
hex | 4c6abc0 |
80128960 has 28 divisors (see below), whose sum is σ = 190807848. Its totient is φ = 32051456.
The previous prime is 80128949. The next prime is 80128969. The reversal of 80128960 is 6982108.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80128969) 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, 124882 + ... + 125521.
It is an arithmetic number, because the mean of its divisors is an integer number (6814566).
Almost surely, 280128960 is an apocalyptic number.
80128960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80128960 is an abundant number, since it is smaller than the sum of its proper divisors (110678888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80128960 is a wasteful number, since it uses less digits than its factorization.
80128960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 250420 (or 250410 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 34.
The square root of 80128960 is about 8951.4780902374. The cubic root of 80128960 is about 431.1183436236.
The spelling of 80128960 in words is "eighty million, one hundred twenty-eight thousand, nine hundred sixty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.134 sec. • engine limits •