Base | Representation |
---|---|
bin | 100110100101… |
… | …1101101111000 |
3 | 1102001221120100 |
4 | 1031023231320 |
5 | 20134424310 |
6 | 2001355400 |
7 | 333656400 |
oct | 115135570 |
9 | 42057510 |
10 | 20233080 |
11 | 1046a45a |
12 | 6938b60 |
13 | 426554a |
14 | 2989800 |
15 | 1b99ec0 |
hex | 134bb78 |
20233080 has 288 divisors, whose sum is σ = 81095040. Its totient is φ = 4354560.
The previous prime is 20233069. The next prime is 20233093. The reversal of 20233080 is 8033202.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 546822 + ... + 546858.
It is an arithmetic number, because the mean of its divisors is an integer number (281580).
Almost surely, 220233080 is an apocalyptic number.
20233080 is a gapful number since it is divisible by the number (20) 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 20233080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40547520).
20233080 is an abundant number, since it is smaller than the sum of its proper divisors (60861960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20233080 is a wasteful number, since it uses less digits than its factorization.
20233080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 99 (or 85 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 20233080 is about 4498.1196071247. The cubic root of 20233080 is about 272.4921525109.
Adding to 20233080 its reverse (8033202), we get a palindrome (28266282).
The spelling of 20233080 in words is "twenty million, two hundred thirty-three thousand, eighty".
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