Base | Representation |
---|---|
bin | 10101101110101100… |
… | …101000101011110100 |
3 | 2020020001022222210110 |
4 | 111232230220223310 |
5 | 340240444444340 |
6 | 14415114223020 |
7 | 1454121664431 |
oct | 255654505364 |
9 | 66201288713 |
10 | 23332031220 |
11 | 9993361433 |
12 | 4631a24a70 |
13 | 227aac3644 |
14 | 11b4a3cb88 |
15 | 918549680 |
hex | 56eb28af4 |
23332031220 has 96 divisors (see below), whose sum is σ = 68412137472. Its totient is φ = 5930229888.
The previous prime is 23332031183. The next prime is 23332031231. The reversal of 23332031220 is 2213023332.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360669 + ... + 420411.
It is an arithmetic number, because the mean of its divisors is an integer number (712626432).
Almost surely, 223332031220 is an apocalyptic number.
23332031220 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 23332031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34206068736).
23332031220 is an abundant number, since it is smaller than the sum of its proper divisors (45080106252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23332031220 is a wasteful number, since it uses less digits than its factorization.
23332031220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60061 (or 60059 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 21.
Adding to 23332031220 its reverse (2213023332), we get a palindrome (25545054552).
The spelling of 23332031220 in words is "twenty-three billion, three hundred thirty-two million, thirty-one thousand, two hundred twenty".
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