Base | Representation |
---|---|
bin | 110010011111… |
… | …111101000110 |
3 | 220220120020111 |
4 | 302133331012 |
5 | 11342104321 |
6 | 1151423234 |
7 | 220344001 |
oct | 62377506 |
9 | 26816214 |
10 | 13238086 |
11 | 7521a74 |
12 | 4524b1a |
13 | 29866b4 |
14 | 1a88538 |
15 | 12675e1 |
hex | c9ff46 |
13238086 has 4 divisors (see below), whose sum is σ = 19857132. Its totient is φ = 6619042.
The previous prime is 13238051. The next prime is 13238101. The reversal of 13238086 is 68083231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68083231 = 73 ⋅932647.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a pancake number, because a pancake can be divided into 13238086 parts by 5145 straight cuts.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3309520 + ... + 3309523.
It is an arithmetic number, because the mean of its divisors is an integer number (4964283).
Almost surely, 213238086 is an apocalyptic number.
13238086 is a deficient number, since it is larger than the sum of its proper divisors (6619046).
13238086 is an equidigital number, since it uses as much as digits as its factorization.
13238086 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6619045.
The product of its (nonzero) digits is 6912, while the sum is 31.
The square root of 13238086 is about 3638.4180628399. The cubic root of 13238086 is about 236.5602294205.
It can be divided in two parts, 1323 and 8086, that added together give a square (9409 = 972).
The spelling of 13238086 in words is "thirteen million, two hundred thirty-eight thousand, eighty-six".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •