Base | Representation |
---|---|
bin | 1101000001000101… |
… | …10110010010000000 |
3 | 200001001000101220000 |
4 | 12200202312102000 |
5 | 103303021111323 |
6 | 3113242520000 |
7 | 335115622314 |
oct | 64042662200 |
9 | 20031011800 |
10 | 6988457088 |
11 | 2a66890278 |
12 | 1430506000 |
13 | 874ac4012 |
14 | 4a41d3b44 |
15 | 2ad7d8e43 |
hex | 1a08b6480 |
6988457088 has 120 divisors (see below), whose sum is σ = 20822897865. Its totient is φ = 2326648320.
The previous prime is 6988457071. The next prime is 6988457117. The reversal of 6988457088 is 8807548896.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 6607738944 + 380718144 = 81288^2 + 19512^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=59112.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8511718 + ... + 8512538.
Almost surely, 26988457088 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 6988457088
6988457088 is an abundant number, since it is smaller than the sum of its proper divisors (13834440777).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6988457088 is an frugal number, since it uses more digits than its factorization.
6988457088 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1668 (or 826 counting only the distinct ones).
The product of its (nonzero) digits is 30965760, while the sum is 63.
The square root of 6988457088 is about 83596.9920989984. The cubic root of 6988457088 is about 1911.8791378000.
The spelling of 6988457088 in words is "six billion, nine hundred eighty-eight million, four hundred fifty-seven thousand, eighty-eight".
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