Base | Representation |
---|---|
bin | 10110011111000110… |
… | …00001111011110110 |
3 | 1011011022121012112011 |
4 | 23033203001323312 |
5 | 144210413020040 |
6 | 5313520514434 |
7 | 605104213660 |
oct | 131743017366 |
9 | 34138535464 |
10 | 12072001270 |
11 | 513536a25a |
12 | 240aa7ba1a |
13 | 11a5054224 |
14 | 827401530 |
15 | 4a9c443ea |
hex | 2cf8c1ef6 |
12072001270 has 32 divisors (see below), whose sum is σ = 25012512000. Its totient is φ = 4109191776.
The previous prime is 12072001267. The next prime is 12072001289. The reversal of 12072001270 is 7210027021.
It is a super-2 number, since 2×120720012702 (a number of 21 digits) contains 22 as substring.
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, 610620 + ... + 630079.
It is an arithmetic number, because the mean of its divisors is an integer number (781641000).
Almost surely, 212072001270 is an apocalyptic number.
12072001270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12072001270 is an abundant number, since it is smaller than the sum of its proper divisors (12940510730).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12072001270 is a wasteful number, since it uses less digits than its factorization.
12072001270 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1240852.
The product of its (nonzero) digits is 392, while the sum is 22.
Adding to 12072001270 its reverse (7210027021), we get a palindrome (19282028291).
The spelling of 12072001270 in words is "twelve billion, seventy-two million, one thousand, two hundred seventy".
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