Base | Representation |
---|---|
bin | 1100110010111110… |
… | …11110010010100000 |
3 | 122201210100212012121 |
4 | 12121133132102200 |
5 | 103032223204442 |
6 | 3053414434024 |
7 | 332151104662 |
oct | 63137362240 |
9 | 18653325177 |
10 | 6870131872 |
11 | 2a0601283a |
12 | 13b8962914 |
13 | 8564354b6 |
14 | 4925d2532 |
15 | 2a3214967 |
hex | 1997de4a0 |
6870131872 has 48 divisors (see below), whose sum is σ = 14584752000. Its totient is φ = 3174888960.
The previous prime is 6870131869. The next prime is 6870131881. The reversal of 6870131872 is 2781310786.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112872 + ... + 162727.
It is an arithmetic number, because the mean of its divisors is an integer number (303849000).
Almost surely, 26870131872 is an apocalyptic number.
It is an amenable number.
6870131872 is an abundant number, since it is smaller than the sum of its proper divisors (7714620128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6870131872 is a wasteful number, since it uses less digits than its factorization.
6870131872 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 275669 (or 275661 counting only the distinct ones).
The product of its (nonzero) digits is 112896, while the sum is 43.
The square root of 6870131872 is about 82886.2586439996. The cubic root of 6870131872 is about 1901.0273181196.
The spelling of 6870131872 in words is "six billion, eight hundred seventy million, one hundred thirty-one thousand, eight hundred seventy-two".
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