Base | Representation |
---|---|
bin | 1111010000110… |
… | …01000110110110 |
3 | 22220220112220220 |
4 | 13220121012312 |
5 | 230233412420 |
6 | 20412035210 |
7 | 3113141466 |
oct | 750310666 |
9 | 286815826 |
10 | 128029110 |
11 | 662a6190 |
12 | 36a62b06 |
13 | 206a8691 |
14 | 13009ba6 |
15 | b38e840 |
hex | 7a191b6 |
128029110 has 32 divisors (see below), whose sum is σ = 335204352. Its totient is φ = 31037280.
The previous prime is 128029067. The next prime is 128029129. The reversal of 128029110 is 11920821.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193654 + ... + 194313.
It is an arithmetic number, because the mean of its divisors is an integer number (10475136).
Almost surely, 2128029110 is an apocalyptic number.
128029110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
128029110 is an abundant number, since it is smaller than the sum of its proper divisors (207175242).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128029110 is a wasteful number, since it uses less digits than its factorization.
128029110 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 387988.
The product of its (nonzero) digits is 288, while the sum is 24.
The square root of 128029110 is about 11314.9949182490. The cubic root of 128029110 is about 504.0066215431.
Adding to 128029110 its reverse (11920821), we get a palindrome (139949931).
It can be divided in two parts, 12802 and 9110, that added together give a palindrome (21912).
The spelling of 128029110 in words is "one hundred twenty-eight million, twenty-nine thousand, one hundred ten".
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