Base | Representation |
---|---|
bin | 1000001101001… |
… | …00111101101000 |
3 | 11210112002022010 |
4 | 10012210331220 |
5 | 120110130003 |
6 | 10455155520 |
7 | 1464033450 |
oct | 406447550 |
9 | 153462263 |
10 | 68833128 |
11 | 35944391 |
12 | 1b075ba0 |
13 | 11350680 |
14 | 91dad60 |
15 | 609a003 |
hex | 41a4f68 |
68833128 has 64 divisors (see below), whose sum is σ = 211800960. Its totient is φ = 18153216.
The previous prime is 68833123. The next prime is 68833129. The reversal of 68833128 is 82133886.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a nude number because it is divisible by every one of its digits.
It is not an unprimeable number, because it can be changed into a prime (68833123) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13575 + ... + 17942.
It is an arithmetic number, because the mean of its divisors is an integer number (3309390).
Almost surely, 268833128 is an apocalyptic number.
It is an amenable number.
68833128 is an abundant number, since it is smaller than the sum of its proper divisors (142967832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68833128 is a wasteful number, since it uses less digits than its factorization.
68833128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31546 (or 31542 counting only the distinct ones).
The product of its digits is 55296, while the sum is 39.
The square root of 68833128 is about 8296.5732685248. The cubic root of 68833128 is about 409.8256804063.
It can be divided in two parts, 6883 and 3128, that added together give a triangular number (10011 = T141).
The spelling of 68833128 in words is "sixty-eight million, eight hundred thirty-three thousand, one hundred twenty-eight".
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