Base | Representation |
---|---|
bin | 1101000000011011… |
… | …01001100101110111 |
3 | 200000122120002010011 |
4 | 12200031221211313 |
5 | 103300110300322 |
6 | 3112523441051 |
7 | 335020446202 |
oct | 64015514567 |
9 | 20018502104 |
10 | 6982900087 |
11 | 2a63735209 |
12 | 142a686187 |
13 | 8738c9857 |
14 | 4a3588939 |
15 | 2ad08c677 |
hex | 1a0369977 |
6982900087 has 4 divisors (see below), whose sum is σ = 6983086096. Its totient is φ = 6982714080.
The previous prime is 6982900061. The next prime is 6982900097. The reversal of 6982900087 is 7800092896.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 6982900087 - 227 = 6848682359 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 6982900087.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6982900097) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 14739 + ... + 119092.
It is an arithmetic number, because the mean of its divisors is an integer number (1745771524).
Almost surely, 26982900087 is an apocalyptic number.
6982900087 is a deficient number, since it is larger than the sum of its proper divisors (186009).
6982900087 is a wasteful number, since it uses less digits than its factorization.
6982900087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 186008.
The product of its (nonzero) digits is 435456, while the sum is 49.
The square root of 6982900087 is about 83563.7486413816. The cubic root of 6982900087 is about 1911.3722480611.
The spelling of 6982900087 in words is "six billion, nine hundred eighty-two million, nine hundred thousand, eighty-seven".
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