Base | Representation |
---|---|
bin | 10111010100011110… |
… | …00010000100111110 |
3 | 1012022112002212211001 |
4 | 23222033002010332 |
5 | 201120023300211 |
6 | 5430153320514 |
7 | 622152031543 |
oct | 135217020476 |
9 | 35275085731 |
10 | 12519743806 |
11 | 5345083909 |
12 | 2514a0613a |
13 | 1246a4053b |
14 | 86aa72bca |
15 | 4d41d8ac1 |
hex | 2ea3c213e |
12519743806 has 8 divisors (see below), whose sum is σ = 19884299040. Its totient is φ = 5891644128.
The previous prime is 12519743791. The next prime is 12519743813. The reversal of 12519743806 is 60834791521.
12519743806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
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 3 ways as a sum of consecutive naturals, for example, 184113846 + ... + 184113913.
It is an arithmetic number, because the mean of its divisors is an integer number (2485537380).
It is a 2-persistent number, because it is pandigital, and so is 2⋅12519743806 = 25039487612, but 3⋅12519743806 = 37559231418 is not.
Almost surely, 212519743806 is an apocalyptic number.
12519743806 is the 70767-th centered pentagonal number.
12519743806 is a deficient number, since it is larger than the sum of its proper divisors (7364555234).
12519743806 is a wasteful number, since it uses less digits than its factorization.
12519743806 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 368227778.
The product of its (nonzero) digits is 362880, while the sum is 46.
The spelling of 12519743806 in words is "twelve billion, five hundred nineteen million, seven hundred forty-three thousand, eight hundred six".
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