Base | Representation |
---|---|
bin | 11000000000000000… |
… | …10001101000111111 |
3 | 1020020222100111122120 |
4 | 30000000101220333 |
5 | 202342023133033 |
6 | 5530321414023 |
7 | 634205321166 |
oct | 140000215077 |
9 | 36228314576 |
10 | 12884974143 |
11 | 5512260868 |
12 | 25b719a313 |
13 | 12a45c9b72 |
14 | 8a33863dd |
15 | 5062d01b3 |
hex | 300011a3f |
12884974143 has 16 divisors (see below), whose sum is σ = 17361285216. Its totient is φ = 8499778560.
The previous prime is 12884974099. The next prime is 12884974217. The reversal of 12884974143 is 34147948821.
It is a Cunningham number, because it is equal to 1135122-1.
It is not a de Polignac number, because 12884974143 - 210 = 12884973119 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12884974043) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56755 + ... + 170267.
It is an arithmetic number, because the mean of its divisors is an integer number (1085080326).
Almost surely, 212884974143 is an apocalyptic number.
12884974143 is a deficient number, since it is larger than the sum of its proper divisors (4476311073).
12884974143 is a wasteful number, since it uses less digits than its factorization.
12884974143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 113914.
The product of its digits is 1548288, while the sum is 51.
The spelling of 12884974143 in words is "twelve billion, eight hundred eighty-four million, nine hundred seventy-four thousand, one hundred forty-three".
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