Base | Representation |
---|---|
bin | 1011111111111100… |
… | …1111111110000101 |
3 | 22022110221012202210 |
4 | 2333333033332011 |
5 | 23044040404431 |
6 | 1251341454033 |
7 | 142551202230 |
oct | 27777177605 |
9 | 8273835683 |
10 | 3221028741 |
11 | 1403206627 |
12 | 75a871319 |
13 | 3c4422288 |
14 | 227b00417 |
15 | 13cba3d46 |
hex | bffcff85 |
3221028741 has 16 divisors (see below), whose sum is σ = 4925586944. Its totient is φ = 1834080624.
The previous prime is 3221028739. The next prime is 3221028749. The reversal of 3221028741 is 1478201223.
It is not a de Polignac number, because 3221028741 - 21 = 3221028739 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 3221028699 and 3221028708.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3221028749) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265051 + ... + 276936.
It is an arithmetic number, because the mean of its divisors is an integer number (307849184).
Almost surely, 23221028741 is an apocalyptic number.
It is an amenable number.
3221028741 is a deficient number, since it is larger than the sum of its proper divisors (1704558203).
3221028741 is a wasteful number, since it uses less digits than its factorization.
3221028741 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 542280.
The product of its (nonzero) digits is 5376, while the sum is 30.
The square root of 3221028741 is about 56754.1077015576. The cubic root of 3221028741 is about 1476.8334937190.
Adding to 3221028741 its reverse (1478201223), we get a palindrome (4699229964).
The spelling of 3221028741 in words is "three billion, two hundred twenty-one million, twenty-eight thousand, seven hundred forty-one".
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