Base | Representation |
---|---|
bin | 111011100110111111… |
… | …1111001010011111000 |
3 | 110020102020122102002010 |
4 | 1313031333321103320 |
5 | 4044131043140210 |
6 | 134450153205520 |
7 | 12151132105035 |
oct | 1671577712370 |
9 | 406366572063 |
10 | 128010130680 |
11 | 4a31a421933 |
12 | 209864008a0 |
13 | c0c0866673 |
14 | 62a50ca38c |
15 | 34e3302920 |
hex | 1dcdff94f8 |
128010130680 has 32 divisors (see below), whose sum is σ = 384030392400. Its totient is φ = 34136034816.
The previous prime is 128010130667. The next prime is 128010130723. The reversal of 128010130680 is 86031010821.
It is a super-3 number, since 3×1280101306803 (a number of 34 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30).
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, 533375425 + ... + 533375664.
Almost surely, 2128010130680 is an apocalyptic number.
128010130680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
128010130680 is an abundant number, since it is smaller than the sum of its proper divisors (256020261720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128010130680 is a wasteful number, since it uses less digits than its factorization.
128010130680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1066751103 (or 1066751099 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 30.
The spelling of 128010130680 in words is "one hundred twenty-eight billion, ten million, one hundred thirty thousand, six hundred eighty".
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