Base | Representation |
---|---|
bin | 110001111111… |
… | …111000111001 |
3 | 220122220002000 |
4 | 301333320321 |
5 | 11323403440 |
6 | 1144531213 |
7 | 216256041 |
oct | 61777071 |
9 | 26586060 |
10 | 13106745 |
11 | 7442323 |
12 | 4480b09 |
13 | 293b992 |
14 | 1a52721 |
15 | 123d730 |
hex | c7fe39 |
13106745 has 32 divisors (see below), whose sum is σ = 24675840. Its totient is φ = 6577920.
The previous prime is 13106699. The next prime is 13106747. The reversal of 13106745 is 54760131.
It is not a de Polignac number, because 13106745 - 27 = 13106617 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (13106747) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 561 + ... + 5150.
It is an arithmetic number, because the mean of its divisors is an integer number (771120).
Almost surely, 213106745 is an apocalyptic number.
13106745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13106745 is a deficient number, since it is larger than the sum of its proper divisors (11569095).
13106745 is a wasteful number, since it uses less digits than its factorization.
13106745 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5742 (or 5736 counting only the distinct ones).
The product of its (nonzero) digits is 2520, while the sum is 27.
The square root of 13106745 is about 3620.3238805389. The cubic root of 13106745 is about 235.7752876354.
Adding to 13106745 its reverse (54760131), we get a palindrome (67866876).
The spelling of 13106745 in words is "thirteen million, one hundred six thousand, seven hundred forty-five".
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