Base | Representation |
---|---|
bin | 110010001101… |
… | …110101011101 |
3 | 220202210102201 |
4 | 302031311131 |
5 | 11332220434 |
6 | 1150051501 |
7 | 216614425 |
oct | 62156535 |
9 | 26683381 |
10 | 13163869 |
11 | 7481234 |
12 | 44a9b91 |
13 | 295b994 |
14 | 1a69485 |
15 | 1250614 |
hex | c8dd5d |
13163869 has 2 divisors, whose sum is σ = 13163870. Its totient is φ = 13163868.
The previous prime is 13163863. The next prime is 13163873. The reversal of 13163869 is 96836131.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 13032100 + 131769 = 3610^2 + 363^2 .
It is a cyclic number.
It is not a de Polignac number, because 13163869 - 25 = 13163837 is a prime.
It is a super-2 number, since 2×131638692 = 346574894098322, which contains 22 as substring.
It is equal to p859168 and since 13163869 and 859168 have the same sum of digits, it is a Honaker prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13163863) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6581934 + 6581935.
It is an arithmetic number, because the mean of its divisors is an integer number (6581935).
Almost surely, 213163869 is an apocalyptic number.
It is an amenable number.
13163869 is a deficient number, since it is larger than the sum of its proper divisors (1).
13163869 is an equidigital number, since it uses as much as digits as its factorization.
13163869 is an evil number, because the sum of its binary digits is even.
The product of its digits is 23328, while the sum is 37.
The square root of 13163869 is about 3628.2046524418. The cubic root of 13163869 is about 236.1173229256.
It can be divided in two parts, 131 and 63869, that added together give a cube (64000 = 403).
The spelling of 13163869 in words is "thirteen million, one hundred sixty-three thousand, eight hundred sixty-nine".
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