Base | Representation |
---|---|
bin | 100100001011001001100… |
… | …001000101100000000000 |
3 | 22210122110200201100000000 |
4 | 210023021201011200000 |
5 | 311212031212201114 |
6 | 5141554400000000 |
7 | 344412140166240 |
oct | 44131141054000 |
9 | 8718420640000 |
10 | 2485871990784 |
11 | 879285a28906 |
12 | 341941600000 |
13 | 150555703980 |
14 | 884615d7b20 |
15 | 449e3643e09 |
hex | 242c9845800 |
2485871990784 has 1728 divisors, whose sum is σ = 9749108678400. Its totient is φ = 615303806976.
The previous prime is 2485871990743. The next prime is 2485871990801. The reversal of 2485871990784 is 4870991785842.
2485871990784 is a `hidden beast` number, since 2 + 485 + 8 + 71 + 9 + 9 + 0 + 78 + 4 = 666.
It is a tau number, because it is divible by the number of its divisors (1728).
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 23232448459 + ... + 23232448565.
It is an arithmetic number, because the mean of its divisors is an integer number (5641845300).
Almost surely, 22485871990784 is an apocalyptic number.
2485871990784 is a gapful number since it is divisible by the number (24) 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 2485871990784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4874554339200).
2485871990784 is an abundant number, since it is smaller than the sum of its proper divisors (7263236687616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2485871990784 is an equidigital number, since it uses as much as digits as its factorization.
2485871990784 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 192 (or 151 counting only the distinct ones).
The product of its (nonzero) digits is 325140480, while the sum is 72.
The spelling of 2485871990784 in words is "two trillion, four hundred eighty-five billion, eight hundred seventy-one million, nine hundred ninety thousand, seven hundred eighty-four".
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