Base | Representation |
---|---|
bin | 100100101010010… |
… | …0101010011011100 |
3 | 10011201201012110220 |
4 | 1021110211103130 |
5 | 10004403214234 |
6 | 322022001340 |
7 | 42324644652 |
oct | 11124452334 |
9 | 3151635426 |
10 | 1230132444 |
11 | 581417792 |
12 | 2a3b76250 |
13 | 167b14828 |
14 | b9534dd2 |
15 | 72edda49 |
hex | 495254dc |
1230132444 has 96 divisors (see below), whose sum is σ = 3091156992. Its totient is φ = 379392000.
The previous prime is 1230132443. The next prime is 1230132479. The reversal of 1230132444 is 4442310321.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230132443) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5104164 + ... + 5104404.
It is an arithmetic number, because the mean of its divisors is an integer number (32199552).
Almost surely, 21230132444 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 1230132444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1545578496).
1230132444 is an abundant number, since it is smaller than the sum of its proper divisors (1861024548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230132444 is a wasteful number, since it uses less digits than its factorization.
1230132444 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 587 (or 585 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 24.
The square root of 1230132444 is about 35073.2439902556. The cubic root of 1230132444 is about 1071.4797252123.
Adding to 1230132444 its reverse (4442310321), we get a palindrome (5672442765).
The spelling of 1230132444 in words is "one billion, two hundred thirty million, one hundred thirty-two thousand, four hundred forty-four".
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