Base | Representation |
---|---|
bin | 111101000110001010… |
… | …0111010010110011001 |
3 | 110112122210011202222221 |
4 | 1322030110322112121 |
5 | 4122201021423001 |
6 | 140135102144041 |
7 | 12323224512460 |
oct | 1721424722631 |
9 | 415583152887 |
10 | 131203311001 |
11 | 50708937534 |
12 | 21517882021 |
13 | c4ac288089 |
14 | 64c921b9d7 |
15 | 362d8051a1 |
hex | 1e8c53a599 |
131203311001 has 16 divisors (see below), whose sum is σ = 154948359168. Its totient is φ = 108716414400.
The previous prime is 131203310977. The next prime is 131203311091. The reversal of 131203311001 is 100113302131.
It is a cyclic number.
It is not a de Polignac number, because 131203311001 - 25 = 131203310969 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131203311091) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117070 + ... + 525463.
It is an arithmetic number, because the mean of its divisors is an integer number (9684272448).
Almost surely, 2131203311001 is an apocalyptic number.
It is an amenable number.
131203311001 is a deficient number, since it is larger than the sum of its proper divisors (23745048167).
131203311001 is an equidigital number, since it uses as much as digits as its factorization.
131203311001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 643512.
The product of its (nonzero) digits is 54, while the sum is 16.
Adding to 131203311001 its reverse (100113302131), we get a palindrome (231316613132).
The spelling of 131203311001 in words is "one hundred thirty-one billion, two hundred three million, three hundred eleven thousand, one".
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