Base | Representation |
---|---|
bin | 100100011010110… |
… | …0110100010100010 |
3 | 10011011102121000020 |
4 | 1020311212202202 |
5 | 10000313323132 |
6 | 321131534310 |
7 | 42165631260 |
oct | 11065464242 |
9 | 3134377006 |
10 | 1222011042 |
11 | 57787aa8a |
12 | 2a12ba396 |
13 | 166230075 |
14 | b841d430 |
15 | 7243752c |
hex | 48d668a2 |
1222011042 has 32 divisors (see below), whose sum is σ = 2799194112. Its totient is φ = 348392784.
The previous prime is 1222011031. The next prime is 1222011047. The reversal of 1222011042 is 2401102221.
It is not an unprimeable number, because it can be changed into a prime (1222011047) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11538 + ... + 50765.
It is an arithmetic number, because the mean of its divisors is an integer number (87474816).
Almost surely, 21222011042 is an apocalyptic number.
1222011042 is an abundant number, since it is smaller than the sum of its proper divisors (1577183070).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222011042 is a wasteful number, since it uses less digits than its factorization.
1222011042 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62782.
The product of its (nonzero) digits is 64, while the sum is 15.
The square root of 1222011042 is about 34957.2745219075. The cubic root of 1222011042 is about 1069.1165275596.
Adding to 1222011042 its reverse (2401102221), we get a palindrome (3623113263).
The spelling of 1222011042 in words is "one billion, two hundred twenty-two million, eleven thousand, forty-two".
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