| Base | Representation |
|---|---|
| bin | 10000000010100100… |
| … | …00000001100111100 |
| 3 | 211020010221000212100 |
| 4 | 20001102000030330 |
| 5 | 120114011244403 |
| 6 | 3542300505100 |
| 7 | 423253646331 |
| oct | 100122001474 |
| 9 | 24203830770 |
| 10 | 8611431228 |
| 11 | 3719a23814 |
| 12 | 1803b4b190 |
| 13 | a73111b4a |
| 14 | 5b9988988 |
| 15 | 3560252a3 |
| hex | 20148033c |
8611431228 has 72 divisors (see below), whose sum is σ = 22496475456. Its totient is φ = 2775628800.
The previous prime is 8611431223. The next prime is 8611431247. The reversal of 8611431228 is 8221341168.
8611431228 is a `hidden beast` number, since 8 + 611 + 4 + 3 + 12 + 28 = 666.
It is a super-3 number, since 3×86114312283 (a number of 31 digits) contains 333 as substring.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 8611431192 and 8611431201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8611431223) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140973 + ... + 192603.
It is an arithmetic number, because the mean of its divisors is an integer number (312451048).
Almost surely, 28611431228 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 8611431228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11248237728).
8611431228 is an abundant number, since it is smaller than the sum of its proper divisors (13885044228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8611431228 is a wasteful number, since it uses less digits than its factorization.
8611431228 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51795 (or 51790 counting only the distinct ones).
The product of its digits is 18432, while the sum is 36.
The square root of 8611431228 is about 92797.7975385192. The cubic root of 8611431228 is about 2049.7069760038.
The spelling of 8611431228 in words is "eight billion, six hundred eleven million, four hundred thirty-one thousand, two hundred twenty-eight".
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