Base | Representation |
---|---|
bin | 100110001100… |
… | …0101000101000 |
3 | 1101200022120000 |
4 | 1030120220220 |
5 | 20111230343 |
6 | 1553103000 |
7 | 332125365 |
oct | 114305050 |
9 | 41608500 |
10 | 20023848 |
11 | 10337239 |
12 | 6857a60 |
13 | 41c1240 |
14 | 293346c |
15 | 1b57ed3 |
hex | 1318a28 |
20023848 has 80 divisors (see below), whose sum is σ = 60424980. Its totient is φ = 6158592.
The previous prime is 20023847. The next prime is 20023859. The reversal of 20023848 is 84832002.
It can be written as a sum of positive squares in 2 ways, for example, as 18818244 + 1205604 = 4338^2 + 1098^2 .
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (20023847) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7236 + ... + 9612.
Almost surely, 220023848 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20023848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30212490).
20023848 is an abundant number, since it is smaller than the sum of its proper divisors (40401132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20023848 is a wasteful number, since it uses less digits than its factorization.
20023848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2408 (or 2395 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 27.
The square root of 20023848 is about 4474.8014481092. The cubic root of 20023848 is about 271.5496078578.
The spelling of 20023848 in words is "twenty million, twenty-three thousand, eight hundred forty-eight".
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