Base | Representation |
---|---|
bin | 111001010100101111… |
… | …0100011101010101001 |
3 | 102202202012222002212020 |
4 | 1302221132203222221 |
5 | 4004103211203301 |
6 | 132315200335053 |
7 | 11615410340142 |
oct | 1625136435251 |
9 | 382665862766 |
10 | 123102444201 |
11 | 482311363a0 |
12 | 1ba36914489 |
13 | b7bab89a79 |
14 | 5d5b3b8ac9 |
15 | 3307533436 |
hex | 1ca97a3aa9 |
123102444201 has 32 divisors (see below), whose sum is σ = 185305276800. Its totient is φ = 72006574080.
The previous prime is 123102444191. The next prime is 123102444217. The reversal of 123102444201 is 102444201321.
It is not a de Polignac number, because 123102444201 - 25 = 123102444169 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (123102444251) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2549455 + ... + 2597291.
It is an arithmetic number, because the mean of its divisors is an integer number (5790789900).
Almost surely, 2123102444201 is an apocalyptic number.
123102444201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
123102444201 is a deficient number, since it is larger than the sum of its proper divisors (62202832599).
123102444201 is a wasteful number, since it uses less digits than its factorization.
123102444201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50569.
The product of its (nonzero) digits is 1536, while the sum is 24.
Adding to 123102444201 its reverse (102444201321), we get a palindrome (225546645522).
The spelling of 123102444201 in words is "one hundred twenty-three billion, one hundred two million, four hundred forty-four thousand, two hundred one".
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