Base | Representation |
---|---|
bin | 11000000000010110… |
… | …11100011000110110 |
3 | 1020021011212020120110 |
4 | 30000023130120312 |
5 | 202343300324000 |
6 | 5530504243450 |
7 | 634242233403 |
oct | 140013343066 |
9 | 36234766513 |
10 | 12887901750 |
11 | 5513980379 |
12 | 25b8170586 |
13 | 12a50b3589 |
14 | 8a39092aa |
15 | 5066ac850 |
hex | 3002dc636 |
12887901750 has 32 divisors (see below), whose sum is σ = 32168204640. Its totient is φ = 3436773600.
The previous prime is 12887901731. The next prime is 12887901751. The reversal of 12887901750 is 5710978821.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 12887901750.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12887901751) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8591185 + ... + 8592684.
It is an arithmetic number, because the mean of its divisors is an integer number (1005256395).
Almost surely, 212887901750 is an apocalyptic number.
12887901750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12887901750 is an abundant number, since it is smaller than the sum of its proper divisors (19280302890).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12887901750 is a wasteful number, since it uses less digits than its factorization.
12887901750 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17183889 (or 17183879 counting only the distinct ones).
The product of its (nonzero) digits is 282240, while the sum is 48.
The spelling of 12887901750 in words is "twelve billion, eight hundred eighty-seven million, nine hundred one thousand, seven hundred fifty".
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