Base | Representation |
---|---|
bin | 11000101001001010… |
… | …10010010000000101 |
3 | 1021011000222211100000 |
4 | 30110211102100011 |
5 | 204043414022133 |
6 | 10024453311513 |
7 | 645600005553 |
oct | 142445222005 |
9 | 37130884300 |
10 | 13230220293 |
11 | 567a129364 |
12 | 2692935599 |
13 | 132acaa324 |
14 | 8d7176bd3 |
15 | 52677a413 |
hex | 314952405 |
13230220293 has 24 divisors (see below), whose sum is σ = 19830938400. Its totient is φ = 8814436848.
The previous prime is 13230220273. The next prime is 13230220309. The reversal of 13230220293 is 39202203231.
It is not a de Polignac number, because 13230220293 - 26 = 13230220229 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13230220243) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376603 + ... + 410231.
It is an arithmetic number, because the mean of its divisors is an integer number (826289100).
Almost surely, 213230220293 is an apocalyptic number.
It is an amenable number.
13230220293 is a deficient number, since it is larger than the sum of its proper divisors (6600718107).
13230220293 is an equidigital number, since it uses as much as digits as its factorization.
13230220293 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35263 (or 35251 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 27.
The spelling of 13230220293 in words is "thirteen billion, two hundred thirty million, two hundred twenty thousand, two hundred ninety-three".
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