| Base | Representation |
|---|---|
| bin | 11011101011101… |
| … | …00101010010100 |
| 3 | 121011221122112200 |
| 4 | 31311310222110 |
| 5 | 433421310030 |
| 6 | 35013044500 |
| 7 | 5516531145 |
| oct | 1565645224 |
| 9 | 534848480 |
| 10 | 232213140 |
| 11 | 10a095195 |
| 12 | 65926730 |
| 13 | 39155733 |
| 14 | 22ba9acc |
| 15 | 155bdd60 |
| hex | dd74a94 |
232213140 has 144 divisors (see below), whose sum is σ = 727783056. Its totient is φ = 59904000.
The previous prime is 232213139. The next prime is 232213141. The reversal of 232213140 is 41312232.
It is an interprime number because it is at equal distance from previous prime (232213139) and next prime (232213141).
It can be written as a sum of positive squares in 8 ways, for example, as 47361924 + 184851216 = 6882^2 + 13596^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (232213141) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 963420 + ... + 963660.
It is an arithmetic number, because the mean of its divisors is an integer number (5054049).
Almost surely, 2232213140 is an apocalyptic number.
232213140 is a gapful number since it is divisible by the number (20) 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 232213140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363891528).
232213140 is an abundant number, since it is smaller than the sum of its proper divisors (495569916).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
232213140 is a wasteful number, since it uses less digits than its factorization.
232213140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 410 (or 405 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 232213140 is about 15238.5412687698. The cubic root of 232213140 is about 614.6514781191.
Adding to 232213140 its reverse (41312232), we get a palindrome (273525372).
The spelling of 232213140 in words is "two hundred thirty-two million, two hundred thirteen thousand, one hundred forty".
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