Base | Representation |
---|---|
bin | 110001100111… |
… | …000011001010 |
3 | 220110201111202 |
4 | 301213003022 |
5 | 11312130002 |
6 | 1142424202 |
7 | 215353313 |
oct | 61470312 |
9 | 26421452 |
10 | 13005002 |
11 | 738293a |
12 | 4432062 |
13 | 290458a |
14 | 1a2760a |
15 | 121d502 |
hex | c670ca |
13005002 has 4 divisors (see below), whose sum is σ = 19507506. Its totient is φ = 6502500.
The previous prime is 13004993. The next prime is 13005007. The reversal of 13005002 is 20050031.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 6507601 + 6497401 = 2551^2 + 2549^2 .
It is not an unprimeable number, because it can be changed into a prime (13005007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3251249 + ... + 3251252.
Almost surely, 213005002 is an apocalyptic number.
13005002 is a deficient number, since it is larger than the sum of its proper divisors (6502504).
13005002 is an equidigital number, since it uses as much as digits as its factorization.
13005002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6502503.
The product of its (nonzero) digits is 30, while the sum is 11.
The square root of 13005002 is about 3606.2448613482. The cubic root of 13005002 is about 235.1636222797.
Adding to 13005002 its reverse (20050031), we get a palindrome (33055033).
It can be divided in two parts, 1 and 3005002, that added together give a palindrome (3005003).
The spelling of 13005002 in words is "thirteen million, five thousand, two".
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