Base | Representation |
---|---|
bin | 111110110001010… |
… | …111100100011011 |
3 | 2201101122111101022 |
4 | 332301113210123 |
5 | 4124100111422 |
6 | 252300113055 |
7 | 35045306621 |
oct | 7661274433 |
9 | 2641574338 |
10 | 1053128987 |
11 | 4a0511439 |
12 | 25483578b |
13 | 13a24c861 |
14 | 9dc1b511 |
15 | 626c8342 |
hex | 3ec5791b |
1053128987 has 2 divisors, whose sum is σ = 1053128988. Its totient is φ = 1053128986.
The previous prime is 1053128977. The next prime is 1053129029. The reversal of 1053128987 is 7898213501.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1053128987 - 28 = 1053128731 is a prime.
It is a super-2 number, since 2×10531289872 = 2218161326519292338, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1053128927) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526564493 + 526564494.
It is an arithmetic number, because the mean of its divisors is an integer number (526564494).
Almost surely, 21053128987 is an apocalyptic number.
1053128987 is a deficient number, since it is larger than the sum of its proper divisors (1).
1053128987 is an equidigital number, since it uses as much as digits as its factorization.
1053128987 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 120960, while the sum is 44.
The square root of 1053128987 is about 32451.9488937105. The cubic root of 1053128987 is about 1017.4049717771.
The spelling of 1053128987 in words is "one billion, fifty-three million, one hundred twenty-eight thousand, nine hundred eighty-seven".
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