Base | Representation |
---|---|
bin | 100110010011… |
… | …1100100100000 |
3 | 1101210102110210 |
4 | 1030213210200 |
5 | 20120210044 |
6 | 1554254120 |
7 | 332501631 |
oct | 114474440 |
9 | 41712423 |
10 | 20085024 |
11 | 103791a3 |
12 | 6887340 |
13 | 421303b |
14 | 294b888 |
15 | 1b6b1b9 |
hex | 1327920 |
20085024 has 96 divisors (see below), whose sum is σ = 57770496. Its totient is φ = 6082560.
The previous prime is 20085019. The next prime is 20085029. The reversal of 20085024 is 42058002.
It is an interprime number because it is at equal distance from previous prime (20085019) and next prime (20085029).
It is a tau number, because it is divible by the number of its divisors (96).
It is not an unprimeable number, because it can be changed into a prime (20085029) 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, 50394 + ... + 50790.
It is an arithmetic number, because the mean of its divisors is an integer number (601776).
Almost surely, 220085024 is an apocalyptic number.
20085024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20085024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28885248).
20085024 is an abundant number, since it is smaller than the sum of its proper divisors (37685472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20085024 is a wasteful number, since it uses less digits than its factorization.
20085024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 458 (or 450 counting only the distinct ones).
The product of its (nonzero) digits is 640, while the sum is 21.
The square root of 20085024 is about 4481.6318456562. The cubic root of 20085024 is about 271.8258689394.
The spelling of 20085024 in words is "twenty million, eighty-five thousand, twenty-four".
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