Base | Representation |
---|---|
bin | 100101010010000001… |
… | …0001010000010100000 |
3 | 21122122121201120001110 |
4 | 1022210002022002200 |
5 | 2302431212041120 |
6 | 100440230303320 |
7 | 5532666004302 |
oct | 1124402120240 |
9 | 248577646043 |
10 | 80061440160 |
11 | 30a54660a79 |
12 | 136244b7b40 |
13 | 771ba97440 |
14 | 3c36dad972 |
15 | 2138aa82e0 |
hex | 12a408a0a0 |
80061440160 has 384 divisors, whose sum is σ = 290157396480. Its totient is φ = 18381275136.
The previous prime is 80061440149. The next prime is 80061440191. The reversal of 80061440160 is 6104416008.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11983701 + ... + 11990379.
It is an arithmetic number, because the mean of its divisors is an integer number (755618220).
Almost surely, 280061440160 is an apocalyptic number.
80061440160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80061440160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145078698240).
80061440160 is an abundant number, since it is smaller than the sum of its proper divisors (210095956320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80061440160 is a wasteful number, since it uses less digits than its factorization.
80061440160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6840 (or 6832 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 30.
Adding to 80061440160 its reverse (6104416008), we get a palindrome (86165856168).
The spelling of 80061440160 in words is "eighty billion, sixty-one million, four hundred forty thousand, one hundred sixty".
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