Base | Representation |
---|---|
bin | 11101110101010000011100… |
… | …000100111101100100001010 |
3 | 122012112220012212011112212010 |
4 | 131311100130010331210022 |
5 | 114144113003244133002 |
6 | 1143013515312400350 |
7 | 36431053631146206 |
oct | 3565203404754412 |
9 | 565486185145763 |
10 | 131203132021002 |
11 | 38894a32627028 |
12 | 128700675460b6 |
13 | 582952c9c9a52 |
14 | 24583a0657b06 |
15 | 1027d6420546c |
hex | 77541c13d90a |
131203132021002 has 64 divisors (see below), whose sum is σ = 269346345206400. Its totient is φ = 42592630671360.
The previous prime is 131203132020973. The next prime is 131203132021007. The reversal of 131203132021002 is 200120231302131.
It is a self number, because there is not a number n which added to its sum of digits gives 131203132021002.
It is not an unprimeable number, because it can be changed into a prime (131203132021007) 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, 315389874 + ... + 315805602.
It is an arithmetic number, because the mean of its divisors is an integer number (4208536643850).
Almost surely, 2131203132021002 is an apocalyptic number.
131203132021002 is an abundant number, since it is smaller than the sum of its proper divisors (138143213185398).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131203132021002 is a wasteful number, since it uses less digits than its factorization.
131203132021002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 424711.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 131203132021002 its reverse (200120231302131), we get a palindrome (331323363323133).
The spelling of 131203132021002 in words is "one hundred thirty-one trillion, two hundred three billion, one hundred thirty-two million, twenty-one thousand, two".
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