Base | Representation |
---|---|
bin | 1111010000110… |
… | …10101101010110 |
3 | 22220220212220212 |
4 | 13220122231112 |
5 | 230234120140 |
6 | 20412125422 |
7 | 3113166560 |
oct | 750325526 |
9 | 286825825 |
10 | 128035670 |
11 | 66300104 |
12 | 36a66872 |
13 | 206ab669 |
14 | 1300c330 |
15 | b391765 |
hex | 7a1ab56 |
128035670 has 48 divisors (see below), whose sum is σ = 279836640. Its totient is φ = 41309184.
The previous prime is 128035643. The next prime is 128035681. The reversal of 128035670 is 76530821.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17066 + ... + 23394.
It is an arithmetic number, because the mean of its divisors is an integer number (5829930).
Almost surely, 2128035670 is an apocalyptic number.
128035670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
128035670 is an abundant number, since it is smaller than the sum of its proper divisors (151800970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128035670 is a wasteful number, since it uses less digits than its factorization.
128035670 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6377 (or 6360 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 32.
The square root of 128035670 is about 11315.2847953554. The cubic root of 128035670 is about 504.0152295516.
The spelling of 128035670 in words is "one hundred twenty-eight million, thirty-five thousand, six hundred seventy".
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