Base | Representation |
---|---|
bin | 1011111110000101… |
… | …1011110101110010 |
3 | 22021221020010122110 |
4 | 2333201123311302 |
5 | 23040040304132 |
6 | 1250502150150 |
7 | 142424601024 |
oct | 27741336562 |
9 | 8257203573 |
10 | 3213213042 |
11 | 13a9858576 |
12 | 758122356 |
13 | 3c29169c0 |
14 | 226a68014 |
15 | 13c15d1cc |
hex | bf85bd72 |
3213213042 has 64 divisors (see below), whose sum is σ = 7071120000. Its totient is φ = 967362048.
The previous prime is 3213213007. The next prime is 3213213043. The reversal of 3213213042 is 2403123123.
It is not an unprimeable number, because it can be changed into a prime (3213213043) 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, 1052334 + ... + 1055382.
It is an arithmetic number, because the mean of its divisors is an integer number (110486250).
Almost surely, 23213213042 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 3213213042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3535560000).
3213213042 is an abundant number, since it is smaller than the sum of its proper divisors (3857906958).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3213213042 is a wasteful number, since it uses less digits than its factorization.
3213213042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3355.
The product of its (nonzero) digits is 864, while the sum is 21.
The square root of 3213213042 is about 56685.2100816430. The cubic root of 3213213042 is about 1475.6380335736.
Adding to 3213213042 its reverse (2403123123), we get a palindrome (5616336165).
The spelling of 3213213042 in words is "three billion, two hundred thirteen million, two hundred thirteen thousand, forty-two".
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