Base | Representation |
---|---|
bin | 111101000001010001… |
… | …1001101100010010101 |
3 | 110112020100112111222102 |
4 | 1322002203031202111 |
5 | 4121332024144240 |
6 | 140110522411445 |
7 | 12316163364623 |
oct | 1720243154225 |
9 | 415210474872 |
10 | 131039287445 |
11 | 50634297180 |
12 | 21490960b85 |
13 | c4842b9111 |
14 | 64b1522513 |
15 | 361e205815 |
hex | 1e828cd895 |
131039287445 has 16 divisors (see below), whose sum is σ = 172693641600. Its totient is φ = 94661688000.
The previous prime is 131039287439. The next prime is 131039287453. The reversal of 131039287445 is 544782930131.
It is not a de Polignac number, because 131039287445 - 210 = 131039286421 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 131039287445.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7986881 + ... + 8003270.
It is an arithmetic number, because the mean of its divisors is an integer number (10793352600).
Almost surely, 2131039287445 is an apocalyptic number.
It is an amenable number.
131039287445 is a deficient number, since it is larger than the sum of its proper divisors (41654354155).
131039287445 is a wasteful number, since it uses less digits than its factorization.
131039287445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15990316.
The product of its (nonzero) digits is 725760, while the sum is 47.
The spelling of 131039287445 in words is "one hundred thirty-one billion, thirty-nine million, two hundred eighty-seven thousand, four hundred forty-five".
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