Base | Representation |
---|---|
bin | 111101001001111101… |
… | …0010010100011111111 |
3 | 110112222122121012010000 |
4 | 1322103322102203333 |
5 | 4122431110100030 |
6 | 140155445245343 |
7 | 12326331153630 |
oct | 1722372224377 |
9 | 415878535100 |
10 | 131330550015 |
11 | 50773743045 |
12 | 21552403853 |
13 | c4cc747c32 |
14 | 64dc09d887 |
15 | 3639a8a860 |
hex | 1e93e928ff |
131330550015 has 80 divisors (see below), whose sum is σ = 269246799360. Its totient is φ = 59993784000.
The previous prime is 131330549983. The next prime is 131330550079. The reversal of 131330550015 is 510055033131.
131330550015 is a `hidden beast` number, since 13 + 133 + 0 + 5 + 500 + 15 = 666.
It is not a de Polignac number, because 131330550015 - 25 = 131330549983 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4120390 + ... + 4152140.
It is an arithmetic number, because the mean of its divisors is an integer number (3365584992).
Almost surely, 2131330550015 is an apocalyptic number.
131330550015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
131330550015 is an abundant number, since it is smaller than the sum of its proper divisors (137916249345).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131330550015 is a wasteful number, since it uses less digits than its factorization.
131330550015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33234 (or 33225 counting only the distinct ones).
The product of its (nonzero) digits is 3375, while the sum is 27.
Adding to 131330550015 its reverse (510055033131), we get a palindrome (641385583146).
The spelling of 131330550015 in words is "one hundred thirty-one billion, three hundred thirty million, five hundred fifty thousand, fifteen".
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