Base | Representation |
---|---|
bin | 11010101001000111… |
… | …111011110101000000 |
3 | 2201211200120000200220 |
4 | 122221013323311000 |
5 | 432041422431334 |
6 | 21050400143040 |
7 | 2031625320444 |
oct | 325107736500 |
9 | 81750500626 |
10 | 28607233344 |
11 | 11150045908 |
12 | 5664607a80 |
13 | 290b979b11 |
14 | 155549a824 |
15 | b26712449 |
hex | 6a91fbd40 |
28607233344 has 224 divisors, whose sum is σ = 81815391360. Its totient is φ = 8789164032.
The previous prime is 28607233339. The next prime is 28607233363. The reversal of 28607233344 is 44333270682.
It is a junction number, because it is equal to n+sod(n) for n = 28607233296 and 28607233305.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56202562 + ... + 56203070.
Almost surely, 228607233344 is an apocalyptic number.
28607233344 is a gapful number since it is divisible by the number (24) 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 28607233344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40907695680).
28607233344 is an abundant number, since it is smaller than the sum of its proper divisors (53208158016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28607233344 is a wasteful number, since it uses less digits than its factorization.
28607233344 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 865 (or 855 counting only the distinct ones).
The product of its (nonzero) digits is 580608, while the sum is 42.
The spelling of 28607233344 in words is "twenty-eight billion, six hundred seven million, two hundred thirty-three thousand, three hundred forty-four".
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