Base | Representation |
---|---|
bin | 11110111111110101101… |
… | …101111111011101010000 |
3 | 21112122020111211002220102 |
4 | 132333311231333131100 |
5 | 234400002102121330 |
6 | 4310322510031532 |
7 | 306616432116665 |
oct | 36776555773520 |
9 | 7478214732812 |
10 | 2130131285840 |
11 | 75142463aa08 |
12 | 2a4a007a85a8 |
13 | 125b416b4a1c |
14 | 75155571a6c |
15 | 3a622625945 |
hex | 1eff5b7f750 |
2130131285840 has 80 divisors (see below), whose sum is σ = 5242480531200. Its totient is φ = 803539462656.
The previous prime is 2130131285839. The next prime is 2130131285881. The reversal of 2130131285840 is 485821310312.
It is a tau number, because it is divible by the number of its divisors (80).
It is a junction number, because it is equal to n+sod(n) for n = 2130131285794 and 2130131285803.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10576520 + ... + 10776039.
It is an arithmetic number, because the mean of its divisors is an integer number (65531006640).
Almost surely, 22130131285840 is an apocalyptic number.
2130131285840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2130131285840 is an abundant number, since it is smaller than the sum of its proper divisors (3112349245360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130131285840 is a wasteful number, since it uses less digits than its factorization.
2130131285840 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21352644 (or 21352638 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 38.
The spelling of 2130131285840 in words is "two trillion, one hundred thirty billion, one hundred thirty-one million, two hundred eighty-five thousand, eight hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.081 sec. • engine limits •