Base | Representation |
---|---|
bin | 1001100111010… |
… | …00000000000000 |
3 | 12121202001002112 |
4 | 10303220000000 |
5 | 131121021143 |
6 | 12000234452 |
7 | 1666306004 |
oct | 463500000 |
9 | 177661075 |
10 | 80642048 |
11 | 4157a623 |
12 | 2300ba28 |
13 | 139266b6 |
14 | a9d2704 |
15 | 712de18 |
hex | 4ce8000 |
80642048 has 64 divisors (see below), whose sum is σ = 169866720. Its totient is φ = 38207488.
The previous prime is 80642041. The next prime is 80642059. The reversal of 80642048 is 84024608.
It is a tau number, because it is divible by the number of its divisors (64).
It is a Harshad number since it is a multiple of its sum of digits (32).
It is not an unprimeable number, because it can be changed into a prime (80642041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753611 + ... + 753717.
Almost surely, 280642048 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 80642048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84933360).
80642048 is an abundant number, since it is smaller than the sum of its proper divisors (89224672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80642048 is an equidigital number, since it uses as much as digits as its factorization.
80642048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 160 (or 132 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 32.
The square root of 80642048 is about 8980.0917589967. The cubic root of 80642048 is about 432.0365766927.
The spelling of 80642048 in words is "eighty million, six hundred forty-two thousand, forty-eight".
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