Base | Representation |
---|---|
bin | 100110010010… |
… | …1001000010100 |
3 | 1101202220202120 |
4 | 1030211020110 |
5 | 20114400103 |
6 | 1554135540 |
7 | 332430531 |
oct | 114451024 |
9 | 41686676 |
10 | 20075028 |
11 | 10371736 |
12 | 68815b0 |
13 | 420b61c |
14 | 2947d88 |
15 | 1b68253 |
hex | 1325214 |
20075028 has 24 divisors (see below), whose sum is σ = 49597632. Its totient is φ = 6297984.
The previous prime is 20074993. The next prime is 20075051. The reversal of 20075028 is 82057002.
It is a junction number, because it is equal to n+sod(n) for n = 20074989 and 20075007.
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, 49000 + ... + 49407.
It is an arithmetic number, because the mean of its divisors is an integer number (2066568).
Almost surely, 220075028 is an apocalyptic number.
It is an amenable number.
20075028 is an abundant number, since it is smaller than the sum of its proper divisors (29522604).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20075028 is a wasteful number, since it uses less digits than its factorization.
20075028 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 98431 (or 98429 counting only the distinct ones).
The product of its (nonzero) digits is 1120, while the sum is 24.
The square root of 20075028 is about 4480.5164880848. The cubic root of 20075028 is about 271.7807669723.
The spelling of 20075028 in words is "twenty million, seventy-five thousand, twenty-eight".
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