| Base | Representation |
|---|---|
| bin | 11010100110010… |
| … | …11011100001010 |
| 3 | 120112212020202000 |
| 4 | 31103023130022 |
| 5 | 424110201102 |
| 6 | 34050251430 |
| 7 | 5346404604 |
| oct | 1523133412 |
| 9 | 515766660 |
| 10 | 223131402 |
| 11 | 104a51a1a |
| 12 | 62886b76 |
| 13 | 372c5b20 |
| 14 | 218c4174 |
| 15 | 148c801c |
| hex | d4cb70a |
223131402 has 64 divisors (see below), whose sum is σ = 562128000. Its totient is φ = 65038464.
The previous prime is 223131401. The next prime is 223131413. The reversal of 223131402 is 204131322.
223131402 is a `hidden beast` number, since 2 + 231 + 31 + 402 = 666.
223131402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-3 number, since 3×2231314023 (a number of 26 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (223131401) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4974 + ... + 21702.
It is an arithmetic number, because the mean of its divisors is an integer number (8783250).
Almost surely, 2223131402 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 223131402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281064000).
223131402 is an abundant number, since it is smaller than the sum of its proper divisors (338996598).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223131402 is a wasteful number, since it uses less digits than its factorization.
223131402 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16772 (or 16766 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 223131402 is about 14937.5835395154. The cubic root of 223131402 is about 606.5317849447.
Adding to 223131402 its reverse (204131322), we get a palindrome (427262724).
It can be divided in two parts, 2231 and 31402, that added together give a palindrome (33633).
The spelling of 223131402 in words is "two hundred twenty-three million, one hundred thirty-one thousand, four hundred two".
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