Base | Representation |
---|---|
bin | 10100101100100111… |
… | …011101110000100000 |
3 | 2010100210012122112012 |
4 | 110230213131300200 |
5 | 331003141120423 |
6 | 14113112052052 |
7 | 1414500415562 |
oct | 245447356040 |
9 | 63323178465 |
10 | 22223379488 |
11 | 9474577a32 |
12 | 4382694028 |
13 | 21322039bb |
14 | 110b6cb332 |
15 | 8a1055078 |
hex | 52c9ddc20 |
22223379488 has 90 divisors (see below), whose sum is σ = 46824251229. Its totient is φ = 10382660352.
The previous prime is 22223379487. The next prime is 22223379533. The reversal of 22223379488 is 88497332222.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 22121207824 + 102171664 = 148732^2 + 10108^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=105412.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (22223379487) by changing a digit.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 304429820 + ... + 304429892.
Almost surely, 222223379488 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 22223379488
22223379488 is an abundant number, since it is smaller than the sum of its proper divisors (24600871741).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22223379488 is an frugal number, since it uses more digits than its factorization.
22223379488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 232 (or 94 counting only the distinct ones).
The product of its digits is 2322432, while the sum is 50.
Multiplying 22223379488 by its sum of digits (50), we get a square (1111168974400 = 10541202).
The spelling of 22223379488 in words is "twenty-two billion, two hundred twenty-three million, three hundred seventy-nine thousand, four hundred eighty-eight".
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