Base | Representation |
---|---|
bin | 10111111101001000… |
… | …10101011000001000 |
3 | 1020012022000000000000 |
4 | 23332210111120020 |
5 | 202314340402300 |
6 | 5524101043000 |
7 | 633463416141 |
oct | 137644253010 |
9 | 36168000000 |
10 | 12860872200 |
11 | 54aa699700 |
12 | 25ab0b6460 |
13 | 129c60b667 |
14 | 8a00b0ac8 |
15 | 50411dc00 |
hex | 2fe915608 |
12860872200 has 468 divisors, whose sum is σ = 49300422045. Its totient is φ = 3117787200.
The previous prime is 12860872183. The next prime is 12860872223. The reversal of 12860872200 is 227806821.
It is a happy number.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
12860872200 is a `hidden beast` number, since 1 + 28 + 608 + 7 + 2 + 20 + 0 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 12603654756 + 257217444 = 112266^2 + 16038^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=80190.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 116 ways as a sum of consecutive naturals, for example, 1169170195 + ... + 1169170205.
Almost surely, 212860872200 is an apocalyptic number.
12860872200 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 12860872200
12860872200 is an abundant number, since it is smaller than the sum of its proper divisors (36439549845).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12860872200 is an frugal number, since it uses more digits than its factorization.
12860872200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74 (or 21 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The spelling of 12860872200 in words is "twelve billion, eight hundred sixty million, eight hundred seventy-two thousand, two hundred".
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