Base | Representation |
---|---|
bin | 11010101010000001000010 |
3 | 111011000111222 |
4 | 122222001002 |
5 | 3242102332 |
6 | 405435042 |
7 | 113252501 |
oct | 32520102 |
9 | 14130458 |
10 | 6987842 |
11 | 3a43084 |
12 | 240ba82 |
13 | 15a8824 |
14 | cdc838 |
15 | 930712 |
hex | 6aa042 |
6987842 has 8 divisors (see below), whose sum is σ = 10659600. Its totient is φ = 3434644.
The previous prime is 6987823. The next prime is 6987847. The reversal of 6987842 is 2487896.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a d-powerful number, because it can be written as 66 + 96 + 83 + 76 + 87 + 411 + 27 .
It is a junction number, because it is equal to n+sod(n) for n = 6987793 and 6987802.
It is not an unprimeable number, because it can be changed into a prime (6987847) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29492 + ... + 29727.
It is an arithmetic number, because the mean of its divisors is an integer number (1332450).
Almost surely, 26987842 is an apocalyptic number.
6987842 is a deficient number, since it is larger than the sum of its proper divisors (3671758).
6987842 is a wasteful number, since it uses less digits than its factorization.
6987842 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59280.
The product of its digits is 193536, while the sum is 44.
The square root of 6987842 is about 2643.4526664951. The cubic root of 6987842 is about 191.1823044903.
The spelling of 6987842 in words is "six million, nine hundred eighty-seven thousand, eight hundred forty-two".
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