Base | Representation |
---|---|
bin | 110001100110… |
… | …001000011101 |
3 | 220110112100121 |
4 | 301212020131 |
5 | 11312014440 |
6 | 1142354541 |
7 | 215336335 |
oct | 61461035 |
9 | 26415317 |
10 | 13001245 |
11 | 7380034 |
12 | 442ba51 |
13 | 290295a |
14 | 1a260c5 |
15 | 121c34a |
hex | c6621d |
13001245 has 16 divisors (see below), whose sum is σ = 16547328. Its totient is φ = 9789120.
The previous prime is 13001239. The next prime is 13001269. The reversal of 13001245 is 54210031.
It is not a de Polignac number, because 13001245 - 23 = 13001237 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
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 in 15 ways as a sum of consecutive naturals, for example, 4602 + ... + 6868.
It is an arithmetic number, because the mean of its divisors is an integer number (1034208).
Almost surely, 213001245 is an apocalyptic number.
It is an amenable number.
13001245 is a deficient number, since it is larger than the sum of its proper divisors (3546083).
13001245 is a wasteful number, since it uses less digits than its factorization.
13001245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2340.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 13001245 is about 3605.7239217666. The cubic root of 13001245 is about 235.1409747163.
Adding to 13001245 its reverse (54210031), we get a palindrome (67211276).
The spelling of 13001245 in words is "thirteen million, one thousand, two hundred forty-five".
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