Base | Representation |
---|---|
bin | 10111110000000101… |
… | …01001111011011101 |
3 | 1012220122222020012100 |
4 | 23320002221323131 |
5 | 202103323131224 |
6 | 5505150155313 |
7 | 630663641352 |
oct | 137002517335 |
9 | 35818866170 |
10 | 12751380189 |
11 | 5453904739 |
12 | 257a4b2b39 |
13 | 1282a235a2 |
14 | 88d72c629 |
15 | 4e96e1ac9 |
hex | 2f80a9edd |
12751380189 has 24 divisors (see below), whose sum is σ = 19103803992. Its totient is φ = 8189251200.
The previous prime is 12751380181. The next prime is 12751380197. The reversal of 12751380189 is 98108315721.
12751380189 is a `hidden beast` number, since 127 + 513 + 8 + 0 + 1 + 8 + 9 = 666.
It is an interprime number because it is at equal distance from previous prime (12751380181) and next prime (12751380197).
It can be written as a sum of positive squares in 4 ways, for example, as 11176084089 + 1575296100 = 105717^2 + 39690^2 .
It is not a de Polignac number, because 12751380189 - 23 = 12751380181 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12751380181) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155934 + ... + 223199.
It is an arithmetic number, because the mean of its divisors is an integer number (795991833).
Almost surely, 212751380189 is an apocalyptic number.
It is an amenable number.
12751380189 is a deficient number, since it is larger than the sum of its proper divisors (6352423803).
12751380189 is a wasteful number, since it uses less digits than its factorization.
12751380189 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 379277 (or 379274 counting only the distinct ones).
The product of its (nonzero) digits is 120960, while the sum is 45.
It can be divided in two parts, 127513 and 80189, that added together give a palindrome (207702).
The spelling of 12751380189 in words is "twelve billion, seven hundred fifty-one million, three hundred eighty thousand, one hundred eighty-nine".
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