Base | Representation |
---|---|
bin | 1000001010001100… |
… | …0001101011101000 |
3 | 12122122021201000120 |
4 | 2002203001223220 |
5 | 13441144020013 |
6 | 1001200003240 |
7 | 105163364034 |
oct | 20243015350 |
9 | 5578251016 |
10 | 2190220008 |
11 | a2435a789 |
12 | 511600520 |
13 | 28b9b8c92 |
14 | 16ac531c4 |
15 | cc439123 |
hex | 828c1ae8 |
2190220008 has 16 divisors (see below), whose sum is σ = 5475550080. Its totient is φ = 730073328.
The previous prime is 2190219989. The next prime is 2190220009. The reversal of 2190220008 is 8000220912.
It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 91259167 = 2190220008 / (2 + 1 + 9 + 0 + 2 + 2 + 0 + 0 + 0 + 8).
It is a self number, because there is not a number n which added to its sum of digits gives 2190220008.
It is not an unprimeable number, because it can be changed into a prime (2190220009) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45629560 + ... + 45629607.
It is an arithmetic number, because the mean of its divisors is an integer number (342221880).
Almost surely, 22190220008 is an apocalyptic number.
It is an amenable number.
2190220008 is an abundant number, since it is smaller than the sum of its proper divisors (3285330072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2190220008 is a wasteful number, since it uses less digits than its factorization.
2190220008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 91259176 (or 91259172 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 24.
The square root of 2190220008 is about 46799.7864097690. The cubic root of 2190220008 is about 1298.6613454862.
The spelling of 2190220008 in words is "two billion, one hundred ninety million, two hundred twenty thousand, eight".
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