Base | Representation |
---|---|
bin | 100111101001… |
… | …0011110100110 |
3 | 1110002222202010 |
4 | 1033102132212 |
5 | 20310110222 |
6 | 2021255050 |
7 | 341445564 |
oct | 117223646 |
9 | 43088663 |
10 | 20785062 |
11 | 10807141 |
12 | 6b64486 |
13 | 43c986c |
14 | 2a90a34 |
15 | 1c5880c |
hex | 13d27a6 |
20785062 has 16 divisors (see below), whose sum is σ = 41615280. Its totient is φ = 6920832.
The previous prime is 20785057. The next prime is 20785081. The reversal of 20785062 is 26058702.
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, 8578 + ... + 10730.
It is an arithmetic number, because the mean of its divisors is an integer number (2600955).
Almost surely, 220785062 is an apocalyptic number.
20785062 is an abundant number, since it is smaller than the sum of its proper divisors (20830218).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20785062 is a wasteful number, since it uses less digits than its factorization.
20785062 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3767.
The product of its (nonzero) digits is 6720, while the sum is 30.
The square root of 20785062 is about 4559.0637196688. The cubic root of 20785062 is about 274.9479218187.
It can be divided in two parts, 2078 and 5062, that added together give a triangular number (7140 = T119).
The spelling of 20785062 in words is "twenty million, seven hundred eighty-five thousand, sixty-two".
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