| Base | Representation |
|---|---|
| bin | 1011111110000010… |
| … | …1010110101011000 |
| 3 | 22021220211221022000 |
| 4 | 2333200222311120 |
| 5 | 23040012343222 |
| 6 | 1250454001000 |
| 7 | 142423103556 |
| oct | 27740526530 |
| 9 | 8256757260 |
| 10 | 3213012312 |
| 11 | 13a9730784 |
| 12 | 758046160 |
| 13 | 3c2876523 |
| 14 | 226a14bd6 |
| 15 | 13c11d9ac |
| hex | bf82ad58 |
3213012312 has 128 divisors (see below), whose sum is σ = 9258624000. Its totient is φ = 1031184000.
The previous prime is 3213012307. The next prime is 3213012317. The reversal of 3213012312 is 2132103123.
3213012312 is a `hidden beast` number, since 321 + 30 + 1 + 2 + 312 = 666.
It is an interprime number because it is at equal distance from previous prime (3213012307) and next prime (3213012317).
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 (3213012317) 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 31 ways as a sum of consecutive naturals, for example, 4277937 + ... + 4278687.
It is an arithmetic number, because the mean of its divisors is an integer number (72333000).
Almost surely, 23213012312 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 3213012312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4629312000).
3213012312 is an abundant number, since it is smaller than the sum of its proper divisors (6045611688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3213012312 is a wasteful number, since it uses less digits than its factorization.
3213012312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1478 (or 1468 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 3213012312 is about 56683.4394863262. The cubic root of 3213012312 is about 1475.6073051421.
Adding to 3213012312 its reverse (2132103123), we get a palindrome (5345115435).
The spelling of 3213012312 in words is "three billion, two hundred thirteen million, twelve thousand, three hundred twelve".
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