Base | Representation |
---|---|
bin | 11010111000111001… |
… | …101111100001010101 |
3 | 2202112010122221110020 |
4 | 122320321233201111 |
5 | 433112204321443 |
6 | 21132534015353 |
7 | 2041321340412 |
oct | 327071574125 |
9 | 82463587406 |
10 | 28871948373 |
11 | 1127650a164 |
12 | 57191a7559 |
13 | 2951772228 |
14 | 157c6c7109 |
15 | b3eaa1583 |
hex | 6b8e6f855 |
28871948373 has 8 divisors (see below), whose sum is σ = 39536361888. Its totient is φ = 18727750224.
The previous prime is 28871948311. The next prime is 28871948407. The reversal of 28871948373 is 37384917882.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28871948373 - 28 = 28871948117 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28871946373) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130053711 + ... + 130053932.
It is an arithmetic number, because the mean of its divisors is an integer number (4942045236).
Almost surely, 228871948373 is an apocalyptic number.
It is an amenable number.
28871948373 is a deficient number, since it is larger than the sum of its proper divisors (10664413515).
28871948373 is a wasteful number, since it uses less digits than its factorization.
28871948373 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 260107683.
The product of its digits is 16257024, while the sum is 60.
The spelling of 28871948373 in words is "twenty-eight billion, eight hundred seventy-one million, nine hundred forty-eight thousand, three hundred seventy-three".
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