Base | Representation |
---|---|
bin | 11010100111101001010010 |
3 | 111010112012021 |
4 | 122213221102 |
5 | 3241300010 |
6 | 405322054 |
7 | 113212255 |
oct | 32475122 |
9 | 14115167 |
10 | 6978130 |
11 | 3a36855 |
12 | 240632a |
13 | 15a4293 |
14 | cd909c |
15 | 92c8da |
hex | 6a7a52 |
6978130 has 24 divisors (see below), whose sum is σ = 13263372. Its totient is φ = 2642976.
The previous prime is 6978113. The next prime is 6978133. The reversal of 6978130 is 318796.
It can be written as a sum of positive squares in 2 ways, for example, as 6974881 + 3249 = 2641^2 + 57^2 .
It is not an unprimeable number, because it can be changed into a prime (6978133) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2644 + ... + 4576.
Almost surely, 26978130 is an apocalyptic number.
6978130 is a deficient number, since it is larger than the sum of its proper divisors (6285242).
6978130 is a wasteful number, since it uses less digits than its factorization.
6978130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1978 (or 1959 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 34.
The square root of 6978130 is about 2641.6150362988. The cubic root of 6978130 is about 191.0936923260.
The spelling of 6978130 in words is "six million, nine hundred seventy-eight thousand, one hundred thirty".
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