Base | Representation |
---|---|
bin | 1000011111111100… |
… | …1000001010101000 |
3 | 12212222222211011011 |
4 | 2013333020022220 |
5 | 14133024111210 |
6 | 1014215513304 |
7 | 110352124564 |
oct | 20777101250 |
9 | 5788884134 |
10 | 2281472680 |
11 | a70917213 |
12 | 538088834 |
13 | 2a4889146 |
14 | 1790086a4 |
15 | d5461d8a |
hex | 87fc82a8 |
2281472680 has 32 divisors (see below), whose sum is σ = 5137318440. Its totient is φ = 911877120.
The previous prime is 2281472657. The next prime is 2281472701. The reversal of 2281472680 is 862741822.
It can be written as a sum of positive squares in 4 ways, for example, as 2227273636 + 54199044 = 47194^2 + 7362^2 .
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (40).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31252 + ... + 74428.
Almost surely, 22281472680 is an apocalyptic number.
2281472680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2281472680 is an abundant number, since it is smaller than the sum of its proper divisors (2855845760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2281472680 is a wasteful number, since it uses less digits than its factorization.
2281472680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44509 (or 44505 counting only the distinct ones).
The product of its (nonzero) digits is 86016, while the sum is 40.
The square root of 2281472680 is about 47764.7640002544. The cubic root of 2281472680 is about 1316.4521886042.
The spelling of 2281472680 in words is "two billion, two hundred eighty-one million, four hundred seventy-two thousand, six hundred eighty".
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