Base | Representation |
---|---|
bin | 1000010100000001… |
… | …1100111101111100 |
3 | 12202111221100120210 |
4 | 2011000130331330 |
5 | 14032230112010 |
6 | 1005232312420 |
7 | 106204224012 |
oct | 20500347574 |
9 | 5674840523 |
10 | 2231488380 |
11 | a45687280 |
12 | 5233a2710 |
13 | 297407c34 |
14 | 1725168b2 |
15 | d0d8bb20 |
hex | 8501cf7c |
2231488380 has 96 divisors (see below), whose sum is σ = 6824160000. Its totient is φ = 540334080.
The previous prime is 2231488379. The next prime is 2231488381. The reversal of 2231488380 is 838841322.
It is an interprime number because it is at equal distance from previous prime (2231488379) and next prime (2231488381).
It is a super-3 number, since 3×22314883803 (a number of 29 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2231488381) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822987 + ... + 825693.
It is an arithmetic number, because the mean of its divisors is an integer number (71085000).
Almost surely, 22231488380 is an apocalyptic number.
2231488380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2231488380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3412080000).
2231488380 is an abundant number, since it is smaller than the sum of its proper divisors (4592671620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2231488380 is a wasteful number, since it uses less digits than its factorization.
2231488380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3979 (or 3977 counting only the distinct ones).
The product of its (nonzero) digits is 73728, while the sum is 39.
The square root of 2231488380 is about 47238.6322833335. The cubic root of 2231488380 is about 1306.7671542473.
The spelling of 2231488380 in words is "two billion, two hundred thirty-one million, four hundred eighty-eight thousand, three hundred eighty".
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