Base | Representation |
---|---|
bin | 1000000111110010… |
… | …1111100011111000 |
3 | 12121221101211122010 |
4 | 2001330233203320 |
5 | 13431111344222 |
6 | 1000200525520 |
7 | 105012155325 |
oct | 20174574370 |
9 | 5557354563 |
10 | 2180184312 |
11 | a19725819 |
12 | 50a1808a0 |
13 | 2898b40b7 |
14 | 16979db4c |
15 | cb60580c |
hex | 81f2f8f8 |
2180184312 has 32 divisors (see below), whose sum is σ = 5771077200. Its totient is φ = 683979264.
The previous prime is 2180184311. The next prime is 2180184313. The reversal of 2180184312 is 2134810812.
It is an interprime number because it is at equal distance from previous prime (2180184311) and next prime (2180184313).
It is a self number, because there is not a number n which added to its sum of digits gives 2180184312.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2180184311) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2671387 + ... + 2672202.
Almost surely, 22180184312 is an apocalyptic number.
It is an amenable number.
2180184312 is an abundant number, since it is smaller than the sum of its proper divisors (3590892888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2180184312 is a wasteful number, since it uses less digits than its factorization.
2180184312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5343615 (or 5343611 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 30.
The square root of 2180184312 is about 46692.4438426605. The cubic root of 2180184312 is about 1296.6747981447.
The spelling of 2180184312 in words is "two billion, one hundred eighty million, one hundred eighty-four thousand, three hundred twelve".
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