Base | Representation |
---|---|
bin | 1000001110100001… |
… | …1000100010100000 |
3 | 12200220111102102200 |
4 | 2003220120202200 |
5 | 14010322322233 |
6 | 1003045413200 |
7 | 105504050352 |
oct | 20350304240 |
9 | 5626442380 |
10 | 2208401568 |
11 | a3364886a |
12 | 51770a200 |
13 | 2926b37b9 |
14 | 16d4270d2 |
15 | cdd2b313 |
hex | 83a188a0 |
2208401568 has 72 divisors (see below), whose sum is σ = 6426227808. Its totient is φ = 719010432.
The previous prime is 2208401567. The next prime is 2208401579. The reversal of 2208401568 is 8651048022.
It is a tau number, because it is divible by the number of its divisors (72).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (2208401567) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76780 + ... + 101547.
It is an arithmetic number, because the mean of its divisors is an integer number (89253164).
Almost surely, 22208401568 is an apocalyptic number.
It is an amenable number.
2208401568 is an abundant number, since it is smaller than the sum of its proper divisors (4217826240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2208401568 is a wasteful number, since it uses less digits than its factorization.
2208401568 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 178386 (or 178375 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 36.
The square root of 2208401568 is about 46993.6332709017. The cubic root of 2208401568 is about 1302.2449509757.
The spelling of 2208401568 in words is "two billion, two hundred eight million, four hundred one thousand, five hundred sixty-eight".
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