Base | Representation |
---|---|
bin | 10111110000000010… |
… | …10100100000000000 |
3 | 1012220122022110012110 |
4 | 23320001110200000 |
5 | 202103230432042 |
6 | 5505134455320 |
7 | 630660653241 |
oct | 137001244000 |
9 | 35818273173 |
10 | 12751030272 |
11 | 5453695852 |
12 | 257a364540 |
13 | 1282930236 |
14 | 88d67acc8 |
15 | 4e967309c |
hex | 2f8054800 |
12751030272 has 48 divisors (see below), whose sum is σ = 33994462320. Its totient is φ = 4250341376.
The previous prime is 12751030247. The next prime is 12751030277. The reversal of 12751030272 is 27203015721.
It is a tau number, because it is divible by the number of its divisors (48).
It is not an unprimeable number, because it can be changed into a prime (12751030277) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031538 + ... + 1043825.
It is an arithmetic number, because the mean of its divisors is an integer number (708217965).
Almost surely, 212751030272 is an apocalyptic number.
12751030272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12751030272 is an abundant number, since it is smaller than the sum of its proper divisors (21243432048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12751030272 is an equidigital number, since it uses as much as digits as its factorization.
12751030272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2075388 (or 2075368 counting only the distinct ones).
The product of its (nonzero) digits is 5880, while the sum is 30.
Adding to 12751030272 its reverse (27203015721), we get a palindrome (39954045993).
The spelling of 12751030272 in words is "twelve billion, seven hundred fifty-one million, thirty thousand, two hundred seventy-two".
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