Base | Representation |
---|---|
bin | 1011111110000100… |
… | …1000000011101100 |
3 | 22021221002000111100 |
4 | 2333201020003230 |
5 | 23040030211022 |
6 | 1250500323100 |
7 | 142424112546 |
oct | 27741100354 |
9 | 8257060440 |
10 | 3213132012 |
11 | 13a9802702 |
12 | 7580a3490 |
13 | 3c28b8b5c |
14 | 226a46696 |
15 | 13c1441ac |
hex | bf8480ec |
3213132012 has 36 divisors (see below), whose sum is σ = 8128804320. Its totient is φ = 1070157792.
The previous prime is 3213132007. The next prime is 3213132019. The reversal of 3213132012 is 2102313123.
3213132012 is a `hidden beast` number, since 321 + 313 + 20 + 12 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
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 (3213132019) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7933 + ... + 80555.
It is an arithmetic number, because the mean of its divisors is an integer number (225800120).
Almost surely, 23213132012 is an apocalyptic number.
It is an amenable number.
3213132012 is an abundant number, since it is smaller than the sum of its proper divisors (4915672308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3213132012 is a wasteful number, since it uses less digits than its factorization.
3213132012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73862 (or 73857 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 3213132012 is about 56684.4953404368. The cubic root of 3213132012 is about 1475.6256293795.
Adding to 3213132012 its reverse (2102313123), we get a palindrome (5315445135).
The spelling of 3213132012 in words is "three billion, two hundred thirteen million, one hundred thirty-two thousand, twelve".
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