Base | Representation |
---|---|
bin | 100110001001… |
… | …0111111110010 |
3 | 1101122010212200 |
4 | 1030102333302 |
5 | 20110011004 |
6 | 1552404030 |
7 | 332001144 |
oct | 114227762 |
9 | 41563780 |
10 | 20000754 |
11 | 10320954 |
12 | 6846616 |
13 | 41b3887 |
14 | 2928c94 |
15 | 1b51239 |
hex | 1312ff2 |
20000754 has 24 divisors (see below), whose sum is σ = 45220032. Its totient is φ = 6376920.
The previous prime is 20000753. The next prime is 20000779. The reversal of 20000754 is 45700002.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (20000753) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23742 + ... + 24569.
It is an arithmetic number, because the mean of its divisors is an integer number (1884168).
Almost surely, 220000754 is an apocalyptic number.
20000754 is an abundant number, since it is smaller than the sum of its proper divisors (25219278).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20000754 is a wasteful number, since it uses less digits than its factorization.
20000754 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48342 (or 48339 counting only the distinct ones).
The product of its (nonzero) digits is 280, while the sum is 18.
The square root of 20000754 is about 4472.2202539678. The cubic root of 20000754 is about 271.4451727348.
Adding to 20000754 its reverse (45700002), we get a palindrome (65700756).
The spelling of 20000754 in words is "twenty million, seven hundred fifty-four", and thus it is an aban number.
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