Base | Representation |
---|---|
bin | 10110100010100101… |
… | …00110110001100001 |
3 | 1011020100122012102211 |
4 | 23101102212301201 |
5 | 144240410001040 |
6 | 5320443442121 |
7 | 605610633445 |
oct | 132122466141 |
9 | 34210565384 |
10 | 12101250145 |
11 | 514a927386 |
12 | 2418826341 |
13 | 11ab12535a |
14 | 82b256825 |
15 | 4ac5c08ea |
hex | 2d14a6c61 |
12101250145 has 8 divisors (see below), whose sum is σ = 14534672256. Its totient is φ = 9672218736.
The previous prime is 12101250143. The next prime is 12101250169. The reversal of 12101250145 is 54105210121.
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 12101250145 - 21 = 12101250143 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12101250143) 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, 1091607 + ... + 1102636.
It is an arithmetic number, because the mean of its divisors is an integer number (1816834032).
Almost surely, 212101250145 is an apocalyptic number.
It is an amenable number.
12101250145 is a deficient number, since it is larger than the sum of its proper divisors (2433422111).
12101250145 is a wasteful number, since it uses less digits than its factorization.
12101250145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2195351.
The product of its (nonzero) digits is 400, while the sum is 22.
Adding to 12101250145 its reverse (54105210121), we get a palindrome (66206460266).
The spelling of 12101250145 in words is "twelve billion, one hundred one million, two hundred fifty thousand, one hundred forty-five".
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