Base | Representation |
---|---|
bin | 11000011110110110… |
… | …11011011000101011 |
3 | 1020221000021200122111 |
4 | 30033123123120223 |
5 | 203404300001222 |
6 | 10012124103151 |
7 | 643500014251 |
oct | 141733333053 |
9 | 36830250574 |
10 | 13143750187 |
11 | 5635339067 |
12 | 2669994ab7 |
13 | 13160c2c99 |
14 | 8c98a85d1 |
15 | 51dd99777 |
hex | 30f6db62b |
13143750187 has 4 divisors (see below), whose sum is σ = 13449418840. Its totient is φ = 12838081536.
The previous prime is 13143750143. The next prime is 13143750203. The reversal of 13143750187 is 78105734131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 13143750187 - 231 = 10996266539 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13143753187) 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, 152834262 + ... + 152834347.
It is an arithmetic number, because the mean of its divisors is an integer number (3362354710).
Almost surely, 213143750187 is an apocalyptic number.
13143750187 is a deficient number, since it is larger than the sum of its proper divisors (305668653).
13143750187 is an equidigital number, since it uses as much as digits as its factorization.
13143750187 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 305668652.
The product of its (nonzero) digits is 70560, while the sum is 40.
The spelling of 13143750187 in words is "thirteen billion, one hundred forty-three million, seven hundred fifty thousand, one hundred eighty-seven".
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