Base | Representation |
---|---|
bin | 10111111110010000… |
… | …01001101011111100 |
3 | 1020012221200000200212 |
4 | 23333020021223330 |
5 | 202324241332000 |
6 | 5525034211552 |
7 | 633636263165 |
oct | 137710115374 |
9 | 36187600625 |
10 | 12870261500 |
11 | 5504a21a58 |
12 | 25b2283bb8 |
13 | 12a1548265 |
14 | 8a143676c |
15 | 504d75c35 |
hex | 2ff209afc |
12870261500 has 48 divisors (see below), whose sum is σ = 28242098976. Its totient is φ = 5123664000.
The previous prime is 12870261499. The next prime is 12870261517. The reversal of 12870261500 is 516207821.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44504 + ... + 166496.
It is an arithmetic number, because the mean of its divisors is an integer number (588377062).
Almost surely, 212870261500 is an apocalyptic number.
12870261500 is a gapful number since it is divisible by the number (10) 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 12870261500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14121049488).
12870261500 is an abundant number, since it is smaller than the sum of its proper divisors (15371837476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12870261500 is a wasteful number, since it uses less digits than its factorization.
12870261500 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 122223 (or 122211 counting only the distinct ones).
The product of its (nonzero) digits is 6720, while the sum is 32.
The spelling of 12870261500 in words is "twelve billion, eight hundred seventy million, two hundred sixty-one thousand, five hundred".
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