Base | Representation |
---|---|
bin | 111101010111100010… |
… | …0110010111001001000 |
3 | 110121011102011010002000 |
4 | 1322233010302321020 |
5 | 4124344242214322 |
6 | 140313005311000 |
7 | 12343533654111 |
oct | 1725704627110 |
9 | 417142133060 |
10 | 131786288712 |
11 | 50987a192a1 |
12 | 2165ab65460 |
13 | c572ca39c0 |
14 | 6542813208 |
15 | 3664aae3ac |
hex | 1eaf132e48 |
131786288712 has 64 divisors (see below), whose sum is σ = 394232496000. Its totient is φ = 40549626432.
The previous prime is 131786288629. The next prime is 131786288723. The reversal of 131786288712 is 217882687131.
131786288712 is a `hidden beast` number, since 1 + 3 + 1 + 7 + 8 + 628 + 8 + 7 + 1 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
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, 23463412 + ... + 23469027.
It is an arithmetic number, because the mean of its divisors is an integer number (6159882750).
Almost surely, 2131786288712 is an apocalyptic number.
131786288712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131786288712 is an abundant number, since it is smaller than the sum of its proper divisors (262446207288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131786288712 is a wasteful number, since it uses less digits than its factorization.
131786288712 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46932467 (or 46932457 counting only the distinct ones).
The product of its digits is 1806336, while the sum is 54.
The spelling of 131786288712 in words is "one hundred thirty-one billion, seven hundred eighty-six million, two hundred eighty-eight thousand, seven hundred twelve".
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