Base | Representation |
---|---|
bin | 111011111101100111… |
… | …1000110101000011000 |
3 | 110022101010202122110002 |
4 | 1313323033012220120 |
5 | 4102204341421440 |
6 | 135053344312132 |
7 | 12206006136434 |
oct | 1677317065030 |
9 | 408333678402 |
10 | 128769092120 |
11 | 4a679882899 |
12 | 20b58612648 |
13 | c1b1b7b086 |
14 | 6337c119c4 |
15 | 3539c70115 |
hex | 1dfb3c6a18 |
128769092120 has 32 divisors (see below), whose sum is σ = 290560662000. Its totient is φ = 51360044928.
The previous prime is 128769092057. The next prime is 128769092201. The reversal of 128769092120 is 21290967821.
It is a super-3 number, since 3×1287690921203 (a number of 34 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4598114 + ... + 4626033.
Almost surely, 2128769092120 is an apocalyptic number.
128769092120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
128769092120 is an abundant number, since it is smaller than the sum of its proper divisors (161791569880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128769092120 is a wasteful number, since it uses less digits than its factorization.
128769092120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9224507 (or 9224503 counting only the distinct ones).
The product of its (nonzero) digits is 217728, while the sum is 47.
The spelling of 128769092120 in words is "one hundred twenty-eight billion, seven hundred sixty-nine million, ninety-two thousand, one hundred twenty".
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