| Base | Representation |
|---|---|
| bin | 100001101101010… |
| … | …0000011111110000 |
| 3 | 2220211012212221120 |
| 4 | 1003122200133300 |
| 5 | 4304020203240 |
| 6 | 304121422240 |
| 7 | 40012350111 |
| oct | 10332403760 |
| 9 | 2824185846 |
| 10 | 1131022320 |
| 11 | 53048389a |
| 12 | 27693a980 |
| 13 | 15042309c |
| 14 | aa2d6208 |
| 15 | 69462ad0 |
| hex | 436a07f0 |
1131022320 has 80 divisors (see below), whose sum is σ = 3516203520. Its totient is φ = 300742912.
The previous prime is 1131022307. The next prime is 1131022331. The reversal of 1131022320 is 232201311.
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×11310223202 = 2558422976676364800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 1131022320.
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, 79597 + ... + 92723.
It is an arithmetic number, because the mean of its divisors is an integer number (43952544).
Almost surely, 21131022320 is an apocalyptic number.
1131022320 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 1131022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1758101760).
1131022320 is an abundant number, since it is smaller than the sum of its proper divisors (2385181200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1131022320 is a wasteful number, since it uses less digits than its factorization.
1131022320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13502 (or 13496 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 1131022320 is about 33630.6752831399. The cubic root of 1131022320 is about 1041.8944513344.
Adding to 1131022320 its reverse (232201311), we get a palindrome (1363223631).
The spelling of 1131022320 in words is "one billion, one hundred thirty-one million, twenty-two thousand, three hundred twenty".
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