Base | Representation |
---|---|
bin | 111011011010100… |
… | …1001100011000000 |
3 | 12010221101121201222 |
4 | 1312311021203000 |
5 | 13040333103344 |
6 | 525454414212 |
7 | 100255460555 |
oct | 16665114300 |
9 | 5127347658 |
10 | 1993644224 |
11 | 9333a6460 |
12 | 477801368 |
13 | 25a060450 |
14 | 14cac2a2c |
15 | ba0595ee |
hex | 76d498c0 |
1993644224 has 112 divisors (see below), whose sum is σ = 4798381056. Its totient is φ = 809395200.
The previous prime is 1993644203. The next prime is 1993644227. The reversal of 1993644224 is 4224463991.
It is a Harshad number since it is a multiple of its sum of digits (44).
It is a cake number, because a cake can be divided into 1993644224 parts by 2287 planar cuts.
It is not an unprimeable number, because it can be changed into a prime (1993644227) 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, 280199 + ... + 287225.
It is an arithmetic number, because the mean of its divisors is an integer number (42842688).
Almost surely, 21993644224 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 1993644224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2399190528).
1993644224 is an abundant number, since it is smaller than the sum of its proper divisors (2804736832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1993644224 is a wasteful number, since it uses less digits than its factorization.
1993644224 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7094 (or 7084 counting only the distinct ones).
The product of its digits is 373248, while the sum is 44.
The square root of 1993644224 is about 44650.2432692141. The cubic root of 1993644224 is about 1258.5850042976.
The spelling of 1993644224 in words is "one billion, nine hundred ninety-three million, six hundred forty-four thousand, two hundred twenty-four".
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