| Base | Representation |
|---|---|
| bin | 100001001111101… |
| … | …1101001011010110 |
| 3 | 2212202002102020220 |
| 4 | 1002133131023112 |
| 5 | 4241034322410 |
| 6 | 302405535210 |
| 7 | 36433644465 |
| oct | 10237351326 |
| 9 | 2782072226 |
| 10 | 1115542230 |
| 11 | 522770430 |
| 12 | 271714506 |
| 13 | 14a16307a |
| 14 | a82269dc |
| 15 | 67e06070 |
| hex | 427dd2d6 |
1115542230 has 128 divisors (see below), whose sum is σ = 3020806656. Its totient is φ = 261273600.
The previous prime is 1115542229. The next prime is 1115542237. The reversal of 1115542230 is 322455111.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 1115542230.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1115542237) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2576094 + ... + 2576526.
It is an arithmetic number, because the mean of its divisors is an integer number (23600052).
Almost surely, 21115542230 is an apocalyptic number.
1115542230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1115542230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1510403328).
1115542230 is an abundant number, since it is smaller than the sum of its proper divisors (1905264426).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1115542230 is a wasteful number, since it uses less digits than its factorization.
1115542230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 702.
The product of its (nonzero) digits is 1200, while the sum is 24.
The square root of 1115542230 is about 33399.7339809766. The cubic root of 1115542230 is about 1037.1191940626.
Adding to 1115542230 its reverse (322455111), we get a palindrome (1437997341).
It can be divided in two parts, 1115 and 542230, that added together give a palindrome (543345).
The spelling of 1115542230 in words is "one billion, one hundred fifteen million, five hundred forty-two thousand, two hundred thirty".
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