Base | Representation |
---|---|
bin | 111100100010010… |
… | …0001110011000000 |
3 | 12020120010011221002 |
4 | 1321010201303000 |
5 | 13124443331034 |
6 | 533320151132 |
7 | 101223112526 |
oct | 17104416300 |
9 | 5216104832 |
10 | 2031230144 |
11 | 9526382a9 |
12 | 4883084a8 |
13 | 264a90238 |
14 | 153aa8316 |
15 | bd4d0e7e |
hex | 79121cc0 |
2031230144 has 56 divisors (see below), whose sum is σ = 4176845088. Its totient is φ = 979292160.
The previous prime is 2031230099. The next prime is 2031230147. The reversal of 2031230144 is 4410321302.
It is not an unprimeable number, because it can be changed into a prime (2031230147) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263789 + ... + 271379.
Almost surely, 22031230144 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 2031230144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2088422544).
2031230144 is an abundant number, since it is smaller than the sum of its proper divisors (2145614944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2031230144 is a wasteful number, since it uses less digits than its factorization.
2031230144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7753 (or 7743 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 2031230144 is about 45069.1706602196. The cubic root of 2031230144 is about 1266.4451281375.
Adding to 2031230144 its reverse (4410321302), we get a palindrome (6441551446).
The spelling of 2031230144 in words is "two billion, thirty-one million, two hundred thirty thousand, one hundred forty-four".
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