Base | Representation |
---|---|
bin | 1000001111101010… |
… | …1110100001000100 |
3 | 12201020112201121102 |
4 | 2003322232201010 |
5 | 14013040211210 |
6 | 1003340435232 |
7 | 105562655546 |
oct | 20372564104 |
9 | 5636481542 |
10 | 2213210180 |
11 | a36332625 |
12 | 519248b18 |
13 | 2936a842c |
14 | 16dd19696 |
15 | ce47aea5 |
hex | 83eae844 |
2213210180 has 12 divisors (see below), whose sum is σ = 4647741420. Its totient is φ = 885284064.
The previous prime is 2213210179. The next prime is 2213210227. The reversal of 2213210180 is 810123122.
It can be written as a sum of positive squares in 2 ways, for example, as 341436484 + 1871773696 = 18478^2 + 43264^2 .
It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 110660509 = 2213210180 / (2 + 2 + 1 + 3 + 2 + 1 + 0 + 1 + 8 + 0).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55330235 + ... + 55330274.
It is an arithmetic number, because the mean of its divisors is an integer number (387311785).
Almost surely, 22213210180 is an apocalyptic number.
2213210180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2213210180 is an abundant number, since it is smaller than the sum of its proper divisors (2434531240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2213210180 is a wasteful number, since it uses less digits than its factorization.
2213210180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 110660518 (or 110660516 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 20.
The square root of 2213210180 is about 47044.7678281018. The cubic root of 2213210180 is about 1303.1894427278.
The spelling of 2213210180 in words is "two billion, two hundred thirteen million, two hundred ten thousand, one hundred eighty".
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