Base | Representation |
---|---|
bin | 11000101000101000… |
… | …00110000011001111 |
3 | 1021010201111212200111 |
4 | 30110110012003033 |
5 | 204041240320441 |
6 | 10024212540451 |
7 | 645513466366 |
oct | 142424060317 |
9 | 37121455614 |
10 | 13225713871 |
11 | 5677630647 |
12 | 2691321727 |
13 | 132a0900c6 |
14 | 8d67227dd |
15 | 52618a081 |
hex | 3145060cf |
13225713871 has 4 divisors (see below), whose sum is σ = 13681773000. Its totient is φ = 12769654744.
The previous prime is 13225713869. The next prime is 13225713883. The reversal of 13225713871 is 17831752231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17831752231 = 128981 ⋅138251.
It is a cyclic number.
It is not a de Polignac number, because 13225713871 - 21 = 13225713869 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13225710871) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228029521 + ... + 228029578.
It is an arithmetic number, because the mean of its divisors is an integer number (3420443250).
Almost surely, 213225713871 is an apocalyptic number.
13225713871 is a deficient number, since it is larger than the sum of its proper divisors (456059129).
13225713871 is an equidigital number, since it uses as much as digits as its factorization.
13225713871 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 456059128.
The product of its digits is 70560, while the sum is 40.
The spelling of 13225713871 in words is "thirteen billion, two hundred twenty-five million, seven hundred thirteen thousand, eight hundred seventy-one".
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