Base | Representation |
---|---|
bin | 110010001000110100010… |
… | …0001000101011100001111 |
3 | 220101202120100101210022011 |
4 | 1210101220201011130033 |
5 | 1400400011021440122 |
6 | 22353343235402051 |
7 | 1310564312314630 |
oct | 144215041053417 |
9 | 26352510353264 |
10 | 6890881046287 |
11 | 2217451784367 |
12 | 9335ba153327 |
13 | 3aca65819cb4 |
14 | 19b740077887 |
15 | be3aab3c377 |
hex | 6446884570f |
6890881046287 has 16 divisors (see below), whose sum is σ = 8150593766400. Its totient is φ = 5700180578400.
The previous prime is 6890881046263. The next prime is 6890881046297. The reversal of 6890881046287 is 7826401880986.
It is not a de Polignac number, because 6890881046287 - 239 = 6341125232399 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6890881046297) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7346839 + ... + 8231512.
It is an arithmetic number, because the mean of its divisors is an integer number (509412110400).
Almost surely, 26890881046287 is an apocalyptic number.
6890881046287 is a deficient number, since it is larger than the sum of its proper divisors (1259712720113).
6890881046287 is a wasteful number, since it uses less digits than its factorization.
6890881046287 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15580566.
The product of its (nonzero) digits is 74317824, while the sum is 67.
The spelling of 6890881046287 in words is "six trillion, eight hundred ninety billion, eight hundred eighty-one million, forty-six thousand, two hundred eighty-seven".
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