| Base | Representation |
|---|---|
| bin | 100001011101100… |
| … | …1011110110001000 |
| 3 | 2220020202201111200 |
| 4 | 1002323023312020 |
| 5 | 4244414430042 |
| 6 | 303225424200 |
| 7 | 36552511152 |
| oct | 10273136610 |
| 9 | 2806681450 |
| 10 | 1122811272 |
| 11 | 526885800 |
| 12 | 27403b060 |
| 13 | 14b80988b |
| 14 | a9199ad2 |
| 15 | 6888ec4c |
| hex | 42ecbd88 |
1122811272 has 108 divisors (see below), whose sum is σ = 3351865335. Its totient is φ = 339298080.
The previous prime is 1122811271. The next prime is 1122811303. The reversal of 1122811272 is 2721182211.
It is a happy number.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
1122811272 is a `hidden beast` number, since 112 + 281 + 1 + 272 = 666.
It can be written as a sum of positive squares in only one way, i.e., 561405636 + 561405636 = 23694^2 + 23694^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=23694.
It is not an unprimeable number, because it can be changed into a prime (1122811271) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3127429 + ... + 3127787.
Almost surely, 21122811272 is an apocalyptic number.
1122811272 is a gapful number since it is divisible by the number (12) 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 1122811272
1122811272 is an abundant number, since it is smaller than the sum of its proper divisors (2229054063).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1122811272 is a wasteful number, since it uses less digits than its factorization.
1122811272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 752 (or 375 counting only the distinct ones).
The product of its digits is 896, while the sum is 27.
The square root of 1122811272 is about 33508.3761468681. The cubic root of 1122811272 is about 1039.3669939843.
Adding to 1122811272 its reverse (2721182211), we get a palindrome (3843993483).
It can be divided in two parts, 11228 and 11272, that added together give a square (22500 = 1502).
The spelling of 1122811272 in words is "one billion, one hundred twenty-two million, eight hundred eleven thousand, two hundred seventy-two".
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