Base | Representation |
---|---|
bin | 1000001000100… |
… | …10111101111000 |
3 | 11202101200222222 |
4 | 10010102331320 |
5 | 114432011003 |
6 | 10434303212 |
7 | 1455663143 |
oct | 404227570 |
9 | 152350888 |
10 | 68235128 |
11 | 35576075 |
12 | 1aa27b08 |
13 | 111a1420 |
14 | 90c305a |
15 | 5eccc38 |
hex | 4112f78 |
68235128 has 32 divisors (see below), whose sum is σ = 138230400. Its totient is φ = 31390848.
The previous prime is 68235119. The next prime is 68235133. The reversal of 68235128 is 82153286.
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, 37913 + ... + 39671.
It is an arithmetic number, because the mean of its divisors is an integer number (4319700).
Almost surely, 268235128 is an apocalyptic number.
It is an amenable number.
68235128 is an abundant number, since it is smaller than the sum of its proper divisors (69995272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68235128 is a wasteful number, since it uses less digits than its factorization.
68235128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2151 (or 2147 counting only the distinct ones).
The product of its digits is 23040, while the sum is 35.
The square root of 68235128 is about 8260.4556775035. The cubic root of 68235128 is about 408.6354157646.
The spelling of 68235128 in words is "sixty-eight million, two hundred thirty-five thousand, one hundred twenty-eight".
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