Base | Representation |
---|---|
bin | 110100100011100010111100… |
… | …100001111000101110011010 |
3 | 1010022101212122021120111101100 |
4 | 310203202330201320232122 |
5 | 220244004004442014432 |
6 | 2135332433242532230 |
7 | 66454252334334336 |
oct | 6443427441705632 |
9 | 1108355567514340 |
10 | 231141123001242 |
11 | 67715444108933 |
12 | 21b10846507076 |
13 | 9bc868c100b0c |
14 | 411140bc507c6 |
15 | 1bac79ebcc07c |
hex | d238bc878b9a |
231141123001242 has 12 divisors (see below), whose sum is σ = 500805766502730. Its totient is φ = 77047041000408.
The previous prime is 231141123001223. The next prime is 231141123001249. The reversal of 231141123001242 is 242100321141132.
231141123001242 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 4 + 112 + 300 + 1 + 242 = 666.
231141123001242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 117940056120441 + 113201066880801 = 10860021^2 + 10639599^2 .
It is not an unprimeable number, because it can be changed into a prime (231141123001249) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6420586750017 + ... + 6420586750052.
Almost surely, 2231141123001242 is an apocalyptic number.
231141123001242 is an abundant number, since it is smaller than the sum of its proper divisors (269664643501488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231141123001242 is a wasteful number, since it uses less digits than its factorization.
231141123001242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12841173500077 (or 12841173500074 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
Adding to 231141123001242 its reverse (242100321141132), we get a palindrome (473241444142374).
The spelling of 231141123001242 in words is "two hundred thirty-one trillion, one hundred forty-one billion, one hundred twenty-three million, one thousand, two hundred forty-two".
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