Base | Representation |
---|---|
bin | 11000100111000011… |
… | …01110011111111101 |
3 | 1021002210200001122211 |
4 | 30103201232133331 |
5 | 204024400311310 |
6 | 10023021540421 |
7 | 645263324626 |
oct | 142341563775 |
9 | 37083601584 |
10 | 13212510205 |
11 | 5670132524 |
12 | 2688a14711 |
13 | 132741929b |
14 | 8d4a86a4d |
15 | 524e2cc8a |
hex | 31386e7fd |
13212510205 has 8 divisors (see below), whose sum is σ = 15856607232. Its totient is φ = 10568944848.
The previous prime is 13212510193. The next prime is 13212510221. The reversal of 13212510205 is 50201521231.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13212510205 - 25 = 13212510173 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76029 + ... + 179458.
It is an arithmetic number, because the mean of its divisors is an integer number (1982075904).
Almost surely, 213212510205 is an apocalyptic number.
It is an amenable number.
13212510205 is a deficient number, since it is larger than the sum of its proper divisors (2644097027).
13212510205 is a wasteful number, since it uses less digits than its factorization.
13212510205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 265835.
The product of its (nonzero) digits is 600, while the sum is 22.
The spelling of 13212510205 in words is "thirteen billion, two hundred twelve million, five hundred ten thousand, two hundred five".
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