Base | Representation |
---|---|
bin | 11001100011001… |
… | …001011001011101 |
3 | 1002212120100221020 |
4 | 121203021121131 |
5 | 1334213101213 |
6 | 110311154353 |
7 | 13423261524 |
oct | 3143113135 |
9 | 1085510836 |
10 | 428643933 |
11 | 1aaa5a593 |
12 | bb6759b9 |
13 | 6aa60283 |
14 | 40cdd4bb |
15 | 27970923 |
hex | 198c965d |
428643933 has 24 divisors (see below), whose sum is σ = 639100320. Its totient is φ = 254787840.
The previous prime is 428643931. The next prime is 428643937. The reversal of 428643933 is 339346824.
It is not a de Polignac number, because 428643933 - 21 = 428643931 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (428643931) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3463 + ... + 29483.
It is an arithmetic number, because the mean of its divisors is an integer number (26629180).
Almost surely, 2428643933 is an apocalyptic number.
It is an amenable number.
428643933 is a deficient number, since it is larger than the sum of its proper divisors (210456387).
428643933 is a wasteful number, since it uses less digits than its factorization.
428643933 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26077 (or 26060 counting only the distinct ones).
The product of its digits is 373248, while the sum is 42.
The square root of 428643933 is about 20703.7178545304. The cubic root of 428643933 is about 753.9899555872.
The spelling of 428643933 in words is "four hundred twenty-eight million, six hundred forty-three thousand, nine hundred thirty-three".
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