Base | Representation |
---|---|
bin | 111010011101000… |
… | …010000010111111 |
3 | 2112100100011112001 |
4 | 322131002002333 |
5 | 4002024022322 |
6 | 241151323131 |
7 | 33205501600 |
oct | 7235020277 |
9 | 2470304461 |
10 | 980689087 |
11 | 463634254 |
12 | 2345204a7 |
13 | 128238601 |
14 | 94361da7 |
15 | 5b169827 |
hex | 3a7420bf |
980689087 has 12 divisors (see below), whose sum is σ = 1141420896. Its totient is φ = 840134400.
The previous prime is 980689069. The next prime is 980689121. The reversal of 980689087 is 780986089.
It is not a de Polignac number, because 980689087 - 215 = 980656319 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (980689007) 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, 110943 + ... + 119455.
It is an arithmetic number, because the mean of its divisors is an integer number (95118408).
Almost surely, 2980689087 is an apocalyptic number.
980689087 is a deficient number, since it is larger than the sum of its proper divisors (160731809).
980689087 is a wasteful number, since it uses less digits than its factorization.
980689087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10878 (or 10871 counting only the distinct ones).
The product of its (nonzero) digits is 1741824, while the sum is 55.
The square root of 980689087 is about 31315.9557893416. The cubic root of 980689087 is about 993.5211440772.
The spelling of 980689087 in words is "nine hundred eighty million, six hundred eighty-nine thousand, eighty-seven".
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