Base | Representation |
---|---|
bin | 11000101001001101… |
… | …00010111101111001 |
3 | 1021011001121121211220 |
4 | 30110212202331321 |
5 | 204044010112110 |
6 | 10024504342253 |
7 | 645602553465 |
oct | 142446427571 |
9 | 37131547756 |
10 | 13230550905 |
11 | 567a3347a0 |
12 | 2692a74989 |
13 | 132b094960 |
14 | 8d72214a5 |
15 | 5267e3370 |
hex | 3149a2f79 |
13230550905 has 32 divisors (see below), whose sum is σ = 24869738880. Its totient is φ = 5921364480.
The previous prime is 13230550871. The next prime is 13230550937. The reversal of 13230550905 is 50905503231.
It is not a de Polignac number, because 13230550905 - 210 = 13230549881 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3081900 + ... + 3086189.
It is an arithmetic number, because the mean of its divisors is an integer number (777179340).
Almost surely, 213230550905 is an apocalyptic number.
13230550905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13230550905 is a deficient number, since it is larger than the sum of its proper divisors (11639187975).
13230550905 is a wasteful number, since it uses less digits than its factorization.
13230550905 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6168121.
The product of its (nonzero) digits is 20250, while the sum is 33.
The spelling of 13230550905 in words is "thirteen billion, two hundred thirty million, five hundred fifty thousand, nine hundred five".
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