Base | Representation |
---|---|
bin | 11000100000010101… |
… | …00011110000011101 |
3 | 1020221212112101121020 |
4 | 30100022203300131 |
5 | 203420430331440 |
6 | 10013244554353 |
7 | 644010022653 |
oct | 142012436035 |
9 | 36855471536 |
10 | 13156105245 |
11 | 5641307658 |
12 | 2671b529b9 |
13 | 131882a77a |
14 | 8cb3a2dd3 |
15 | 51eeda3d0 |
hex | 3102a3c1d |
13156105245 has 16 divisors (see below), whose sum is σ = 21055332480. Its totient is φ = 7014734784.
The previous prime is 13156105213. The next prime is 13156105289. The reversal of 13156105245 is 54250165131.
It is not a de Polignac number, because 13156105245 - 25 = 13156105213 is a prime.
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, 56290 + ... + 171699.
It is an arithmetic number, because the mean of its divisors is an integer number (1315958280).
Almost surely, 213156105245 is an apocalyptic number.
13156105245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13156105245 is a deficient number, since it is larger than the sum of its proper divisors (7899227235).
13156105245 is a wasteful number, since it uses less digits than its factorization.
13156105245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 231844.
The product of its (nonzero) digits is 18000, while the sum is 33.
The spelling of 13156105245 in words is "thirteen billion, one hundred fifty-six million, one hundred five thousand, two hundred forty-five".
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