Base | Representation |
---|---|
bin | 10110100101001011… |
… | …10001001010010001 |
3 | 1011021212122210002121 |
4 | 23102211301022101 |
5 | 144312000110031 |
6 | 5322543014241 |
7 | 606264141652 |
oct | 132245611221 |
9 | 34255583077 |
10 | 12123050641 |
11 | 5161167419 |
12 | 2423b9a381 |
13 | 11b27b9160 |
14 | 8300cd529 |
15 | 4ae47a011 |
hex | 2d2971291 |
12123050641 has 8 divisors (see below), whose sum is σ = 13505786280. Its totient is φ = 10804628352.
The previous prime is 12123050603. The next prime is 12123050689. The reversal of 12123050641 is 14605032121.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 1983366225 + 10139684416 = 44535^2 + 100696^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12123050641 - 211 = 12123048593 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12123050941) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16077940 + ... + 16078693.
It is an arithmetic number, because the mean of its divisors is an integer number (1688223285).
Almost surely, 212123050641 is an apocalyptic number.
It is an amenable number.
12123050641 is a deficient number, since it is larger than the sum of its proper divisors (1382735639).
12123050641 is a wasteful number, since it uses less digits than its factorization.
12123050641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32156675.
The product of its (nonzero) digits is 1440, while the sum is 25.
Adding to 12123050641 its reverse (14605032121), we get a palindrome (26728082762).
The spelling of 12123050641 in words is "twelve billion, one hundred twenty-three million, fifty thousand, six hundred forty-one".
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