Base | Representation |
---|---|
bin | 110001101000… |
… | …100001100101 |
3 | 220111000210120 |
4 | 301220201211 |
5 | 11312323140 |
6 | 1142512153 |
7 | 215410035 |
oct | 61504145 |
9 | 26430716 |
10 | 13011045 |
11 | 7387433 |
12 | 4435659 |
13 | 2907258 |
14 | 1a298c5 |
15 | 12201d0 |
hex | c68865 |
13011045 has 16 divisors (see below), whose sum is σ = 20866560. Its totient is φ = 6922944.
The previous prime is 13011007. The next prime is 13011059. The reversal of 13011045 is 54011031.
It is not a de Polignac number, because 13011045 - 211 = 13008997 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8391 + ... + 9819.
It is an arithmetic number, because the mean of its divisors is an integer number (1304160).
Almost surely, 213011045 is an apocalyptic number.
13011045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13011045 is a deficient number, since it is larger than the sum of its proper divisors (7855515).
13011045 is a wasteful number, since it uses less digits than its factorization.
13011045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2044.
The product of its (nonzero) digits is 60, while the sum is 15.
The square root of 13011045 is about 3607.0826161872. The cubic root of 13011045 is about 235.2000409262.
Adding to 13011045 its reverse (54011031), we get a palindrome (67022076).
It can be divided in two parts, 1301 and 1045, that added together give a triangular number (2346 = T68).
The spelling of 13011045 in words is "thirteen million, eleven thousand, forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •