Base | Representation |
---|---|
bin | 1001000101010101010… |
… | …11100110000011111011 |
3 | 1002211120212110200120021 |
4 | 10202222223212003323 |
5 | 20103140401400443 |
6 | 355213255511311 |
7 | 31356105300226 |
oct | 4425253460373 |
9 | 1084525420507 |
10 | 312101200123 |
11 | 1103a7a9a039 |
12 | 505a2088537 |
13 | 2357ac3725b |
14 | 1116a3845bd |
15 | 81b9c6e9ed |
hex | 48aaae60fb |
312101200123 has 8 divisors (see below), whose sum is σ = 314261204400. Its totient is φ = 309942067680.
The previous prime is 312101200111. The next prime is 312101200133. The reversal of 312101200123 is 321002101213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-312101200123 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 312101200097 and 312101200106.
It is not an unprimeable number, because it can be changed into a prime (312101200133) 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, 508836 + ... + 939742.
It is an arithmetic number, because the mean of its divisors is an integer number (39282650550).
Almost surely, 2312101200123 is an apocalyptic number.
312101200123 is a deficient number, since it is larger than the sum of its proper divisors (2160004277).
312101200123 is a wasteful number, since it uses less digits than its factorization.
312101200123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 435917.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 312101200123 its reverse (321002101213), we get a palindrome (633103301336).
The spelling of 312101200123 in words is "three hundred twelve billion, one hundred one million, two hundred thousand, one hundred twenty-three".
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