| Base | Representation |
|---|---|
| bin | 100101000101001… |
| … | …0111010111010000 |
| 3 | 10012201020111020002 |
| 4 | 1022022113113100 |
| 5 | 10022010343440 |
| 6 | 323244105132 |
| 7 | 42555534656 |
| oct | 11212272720 |
| 9 | 3181214202 |
| 10 | 1244231120 |
| 11 | 589377290 |
| 12 | 2a88351a8 |
| 13 | 16aa0cb42 |
| 14 | bb364dd6 |
| 15 | 74376115 |
| hex | 4a2975d0 |
1244231120 has 80 divisors (see below), whose sum is σ = 3187296000. Its totient is φ = 447936000.
The previous prime is 1244231099. The next prime is 1244231137. The reversal of 1244231120 is 211324421.
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×12442311202 = 3096222159952908800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 1244231092 and 1244231101.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81881 + ... + 95879.
It is an arithmetic number, because the mean of its divisors is an integer number (39841200).
Almost surely, 21244231120 is an apocalyptic number.
1244231120 is a gapful number since it is divisible by the number (10) 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 1244231120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1593648000).
1244231120 is an abundant number, since it is smaller than the sum of its proper divisors (1943064880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1244231120 is a wasteful number, since it uses less digits than its factorization.
1244231120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14124 (or 14118 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 20.
The square root of 1244231120 is about 35273.6604281438. The cubic root of 1244231120 is about 1075.5576324500.
Adding to 1244231120 its reverse (211324421), we get a palindrome (1455555541).
The spelling of 1244231120 in words is "one billion, two hundred forty-four million, two hundred thirty-one thousand, one hundred twenty".
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